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Home My WebLink About2023.12.08_Impact 5 Culvert Revision Package_FINAL.pdf 5410 Trinity Road P 919.866.4951 T I M M O N S GROUP Suite F 919.859.5663 Raleighh,,NC 27607 www.timmons.cons.com December 8, 2023 David Bailey U.S. Army Corps of Engineers—Wilmington District Raleigh Regulatory Field Office 3331 Heritage Trade Drive, Suite 105 Wake Forest, North Carolina 27587 Zachary Thomas NCDEQ— Division of Water Resources Raleigh Regional Office 3800 Barrett Drive Raleigh, NC 27609 Re: Impact 5 Culvert Revision Cambria USACE AID: SAW-2021-01965 DWR Project#: 20231242, Version 1 (Approx. 131.2 acres) Wake County, North Carolina Dear Mr. Bailey and Mr. Thomas, On behalf of Pulte Home Company LLC,we are providing additional information relating to a culvert revision at Impact 5 for the Cambria project, an approximately 131.2-acre site located at 2121 New Bethel Church Road in Garner,Wake County, North Carolina (the Site).This information is supplemental to the application submitted September 8, 2023 and the response to Request for Additional Information (RAI)submitted The revised Impacts Maps have been attached showing adjustments to Impact 5, revising the high flow (floodplain)culvert from a 7'x 12' box culvert to a 60" reinforced concrete pipe (RCP)culvert. This revision was prompted by a value engineering peer review of the sizing of the original twin box culverts. The review determined the floodplain culvert could be downsized based on an additional watershed study taking into account a range of hydrologic methods. While the hydraulic models show that the primary culvert is sufficient to pass the 100-year peak discharge with enough freeboard, the floodplain culvert is retained for the purpose of providing relief on the stream channel during bankfull events.The primary(low flow)culvert's 12' width is sized to match the existing stream channel. Although the average stream width varies in this area, the stream width at the entrance and exit of the culvert is 12' wide based on stream width measurements taken by Timmons Group personnel on 10/27/2022. Per previous revisions baffles have been added to further ensure aquatic life passage and maintain compliance with Regional Condition B.9. This revision does not result in any changes to wetland or stream impact totals. Riparian buffer Zone 2 permanent impacts remain unchanged, but remaining buffer impacts changed as follows: permanent Zone 1 impact decreased from 17,207 sq ft to 16,732 sq ft, temporary Zone 1 impact decreased from 3,456 sq ft to 3,392 sq ft, and temporary Zone 2 impact increased from 2,088 sq ft to 2,090 sq ft. This revision did not result in any changes to mitigation requirements. For ease of review, all impact tables are included below. Revisions made during the RAI response are highlighted in green. Revisions resulting from the current culvert revision are highlighted in orange.All other ENGINEERING I DESIGN I TECHNOLOGY impact amounts remain the same as reported in the Pre-Construction Notification (PCN) application dated 09/08/2023. UPDATED IMPACT TABLES Table 1: ePCN Section D-2, updated Wetland Impacts Table 2a. Site 2a1. 2b. 2c. Type 2d. W. 2e. 2f. Type of 2g. # Reason Impact of W. name Forested Jurisdiction Impact type area Impact 6 Access P Headwater W5 Yes Both 0.0129 Road Forest Construction Impact 6 5' T Headwater W5 Yes Both 0.0017 Construction Forest Buffer Impact 6 Utility T Headwater W5 Yes Both 0.0055 Construction Forest Permanent Conversion to PEM Impact 6 Dissipation P Headwater W5 Yes Both 0.0011 Pad Forest Construction Impact 8 Road Fill P Bottomland W10 Yes Both 0.1515 Hardwood Forest Impact 8 5' T Bottomland W10 Yes Both 0.0179 Construction Hardwood Buffer Forest Impact 9 5' T Headwater W8 Yes Both 0.0030 Construction Forest Buffer Impact Grading P Headwater W7 Yes Both 0.0180 10 Forest Impact 5' T Headwater W7 Yes Both 0.0073 10 Construction Forest Buffer Impact Loss of P Headwater W9 Yes Both 0.0158 15 Connectivity Forest — Indirect Impact totals that have changed are highlighted in green. 2g. Total Temporary Wetland Impact: 0.0354 acres 2g. Total Permanent Wetland Impact: 0.1993 acres 2g. Total Wetland Impact: 0.2347 acres 2h. Comments: The proposed project will result in 0.1993 acres of permanent wetland impact (of which 0.0158-acres is indirect loss and 0.1835-acres is from direct permanent impact), and 0.0354-acres of temporary wetland impact(of which 0.0055-acres will result in permanent conversion from PFO to PEM). Impact 6 was revised in the RAI response due to the field work conducted by Timmons Group to collect the flags for W5 with GPS, sub-meter accuracy. The impact maps were updated based on this field work and therefore, the wetland impacts at Impact 6 have changed from the initial PCN application. Impact 15 was added to the impact maps due to the indirect loss of connectivity for Wetland W9. This impact will be mitigated at a 1:1 ratio. All other impact amounts remain the same. Table 2: ePCN Section D-3, updated Stream Impacts Table 3a. Reason 3b. 3c. Type 3d. S. 3e. 3f. Type of 3g. 3h. for Impact Impact of Impact name Stream Jurisdiction S. Impact Type Type width length S1 1 — Road Fill Permanent Fill Stream Intermittent Both 6 82 E S2 1 —5' Temporary Other Stream Intermittent Both 4 10 Construction E Buffer S3 1 — Permanent Rip Rap Stream Intermittent Both 5 30 Dissipation Fill E Pad Construction, no loss S4 3A—Sanitary Temporary Other Stream Intermittent Both 4 34 Sewer E Stream Crossing S5 4— Temporary Other Stream Intermittent Both 6 17 Greenway E Construction S6 5—Road Fill Permanent Fill Stream Perennial Both 10 105 B S7 5— Permanent Other Stream Perennial Both 22 28 Floodplain B Benching S8 5—5' Temporary Other Stream Perennial Both 13 20 Construction B Buffer S9 5— Permanent Rip Rap Stream Perennial Both 10 20 Dissipation Fill B Pad Construction, no loss S10 7—5' Temporary Other Stream Perennial Both 6 5 Construction B Buffer S11 12— Temporary Other Stream Perennial Both 4 4 Drainage B Construction S12 14— Temporary Other Stream Perennial Both 3 6 Drainage A Construction 3a. Reason 3b. 3c. Type M. S. 3e. 3f. Type of 3g. 3h. for Impact Impact of Impact name Stream Jurisdiction S. Impact Type Type width length S13 14— Permanent Rip Rap Stream Perennial Both 2 3 Dissipation Fill A Pad Construction, no loss Impact totals that have changed are highlighted in green. 3i. Total Jurisdictional Ditch Impact: 0 sq. ft. 3i. Total Permanent Stream Impacts: 268— linear feet (0.0577 acres) 3i. Total Temporary Stream Impacts: 96 linear feet (0.014 acres) 3i. Total Stream and Ditch Impacts: 364- linear feet (0.0717 acres) 3j. Comments: The project will result in 268-linear feet (0.0577-acres) of permanent stream impact, of which 215-linear feet (0.0496-acres)will result in permanent loss (remaining 53-linear feet/0.0081-acres consists of no loss impact associated with dissipator pad installation), and 96-linear feet (0.014-acres) of temporary stream impact. Impact 5 impacts changed in the RAI response due to the redesign of the culvert underneath the proposed roadway, Cambria Avenue. Culvert#2A is a 7'xl2' box culvert with baffles.Additionally, based on guidance from the USACE and DWR, floodplain benching has been designed in Stream B, which has increased the permanent stream impact at Impact 5 (CWI-2.7). The original Impact 12 was removed due to a redesign of the sewer construction. The sanitary sewer line is now proposed to be installed using jack and bore underneath the stream. This will only result in buffer impacts and no longer will be impacting the stream because the sanitary sewer easement will be accessible from both sides of underground stream crossing (CWI-2.19). The current Impact 12 is due to drainage construction for the installation of an SCM outlet and dissipation pad at the streambank of Stream B. Impact 14 is also due to drainage construction for the installation of an SCM outlet and dissipation pad at the streambanks of Stream A. The redesign of the outlets are at the request of the Town of Garner. The outlets had previously been designed outside of Zone 1 and Zone 2 of the riparian buffer. All other impact amounts remain the same. Table 3: ePCN Section D-6, updated Buffer Impacts Table 6b. Impact 6c. Per or 6d. Stream 6e. Buffer 6f. Zone 1 6g. Zone 2 Type Temp name mitigation impact impact required? 1 —Road Fill P Stream E No 4,407 3,219 1 —5' T Stream E No 0 455 Construction Buffer 1 —Dissipation T Stream E No 1,026 0 Pad Construction 1 —Dissipation P Stream E No 319 0 Pad Construction 2—Dissipation P Stream B Yes 73 0 Pad Construction 2—Drainage P Stream B Yes 368 275 Construction 2— Manhole P Stream B No 0 11 Installation 2—Sanitary P Stream B No 0 2,564 Sewer Construction 3A—Sanitary P Stream E No 1,878 1,276 Sewer Stream Crossing 3A—Sanitary P Stream E Yes 0 1,063 Sewer Construction 3A—Jack and P Stream E No 0 180 Bore Receiving Pit 3B— Drainage P Stream B Yes 240 357 Construction 313— P Stream B Yes 85 0 Dissipation Pad Construction 4—Greenway P Stream B No 301 396 Construction 6b. Impact 6c. Per or 6d. Stream 6e. Buffer 6f. Zone 1 6g. Zone 2 Type Temp name mitigation impact impact required? 4—Greenway T Stream B No 904 448 Construction 5—Road Fill P Stream B No 6,088 0 and Benching 5—Dissipation P Stream B No 124 0 Pad Construction 5—Bank P Stream B No 643 0 Stabilization 5—5' T Stream B No 1,133 605 Construction Buffer 5—Drainage P Stream B No 88 0 Construction 5—Road Fill P Stream B No 0 4,405 7— Road P Stream B No 1,000 819 Widening 7—5' T Stream B No 329 200 Construction Buffer 7—Dissipation P Stream B No 0 10 Pad Construction 7— Drainage P Stream B No 0 86 Construction 11 —5' T Stream E No 0 119 Construction Buffer 12— Drainage P Stream B No 439 417 Construction 12— P Stream B No 120 0 Dissipation Pad Construction 13—5' T Stream K No 0 263 Construction Buffer 6b. Impact 6c. Per or 6d. Stream 6e. Buffer 6f. Zone 1 6g. Zone 2 Type Temp name mitigation impact impact required? 13—Grading P Stream K No 0 110 14— Drainage P Stream A No 457 404 Construction 14— P Stream A No 101 0 Dissipation Pad Construction Impact totals that have changed are highlighted in green. 6h. Total Buffer Impacts: Total Temporary impacts: Zone 1 Zone 2 3,392.00 2,090.00 Total Permanent impacts: Zone 1 Zone 2 16,732.00 15,592.00 Total Combined Buffer impacts: Zone 1 Zone 2 20,123.00 17,682.00 6i. Comments: The project will result in 3,392 square feet of temporary Zone 1 impact, 2,090 square feet of temporary Zone 2 impact, 16,732 square feet of permanent Zone 1 impact, and 15,592 square feet of permanent Zone 2 impact. Impact 5 buffer impacts have increased since the initial application due to bank stabilization along the curve of the stream at the culvert outlet. Additionally, based on guidance from the USACE and DWR, floodplain benching was designed in Stream B, which has increased the buffer impacts at Impact 5 (CWI-2.7). Additional changes due to the current culvert revision include a decrease in permanent Zone 1 impact due to road fill and benching from 6,563 sq ft to 6,088 sq ft, a decrease in temporary Zone 1 impact for the 5' construction buffer from 1,197 sq ft to 1,133 sq ft, and an increase in temporary Zone 2 impact for the 5' construction buffer from 603 sq ft to 605 sq ft. The following revisions were included in the previously provided RAI response. Impacts 2, 3A, and 3B decreased buffer impacts due to the redesign of the sanitary sewer line and drainage construction for SCM outlets and dissipation pads. Impact 4 increased buffer impacts due to recalculations for the greenway construction. Impact 10 included two new buffer impacts due to drainage construction and a dissipation pad off of Hebron Church Road and into Zone 2 of the buffer of Stream B. Impacts 11 and 13 were added as Zone 2 buffer impacts due to a 5' construction buffer needed for lot construction and grading. Impact 13 was revised to include buffer impacts to Zone 2 due to grading. Impact 14 was added due to drainage construction for the installation of an SCM outlet and dissipation pad at the streambanks of Stream A. The redesign of the outlets were at the request of the Town of Garner.The outlets had previously been designed outside of Zone 1 and Zone 2 of the riparian buffer. All other impact amounts remain the same. Please review the updated Impact Maps and contact Kate Hefner (919) 866-4953 or kate.hefner(c)timmons.com if additional information is required. Sincerely, Timmons Group ' Kate Hefner, WPIT, ISA-CA Environmental Scientist II Lauren Norris-Heflin, PWS Environmental Project Manager Enclosure Attachment 1 — Updated Impact Maps Attachment 2— Updated Buffer Impacts Table Attachment 1 E o �o ry E i z E ~ s 3 aCAMBRIA .� a O M z W O ENVIRONMENTAL IMPACTS ��-' _.Cw� GARNER, WAKE COUNTY, NORTH CAROLINA � w 0 Sheet List Table Z Sheet Number Sheet Title 0 CWI-0.0 COVER SHEET w CWI-1.0 EXISTING CONDITIONS o 0 ® CWI-2.0 OVERALL ENVIRONMENTAL IMPACTS DATE 1210412023 CWI-2.01 ENVIRONMENTAL IMPACTS TABLE DRAWN BY 331 CWI-2.1 ENVIRONMENTAL IMPACT 1 • DESIGNED BY 331 w,N CWI-2.2 ENVIRONMENTAL IMPACT 1 PROFILES „E EBB 0 r R • J AO CWI-2.3 ENVIRONMENTAL IMPACT 2 331 U • SCALE CWI-2.4 ENVIRONMENTAL IMPACT 3 • NTS m • W r CWI-2.5 ENVIRONMENTAL IMPACT 3 PROFILES • A CWI-2.6 ENVIRONMENTAL IMPACT 4 • m CWI-2.7 ENVIRONMENTAL IMPACT 5 A 0 CWI-2.8 ENVIRONMENTAL IMPACT 5 PROFILE _ Of �FweF'"F< SITE CWI-2.9 ENVIRONMENTAL IMPACT 6 CWI-2.10 ENVIRONMENTAL IMPACT 7 O 3 CWI-2.11 ENVIRONMENTAL IMPACT 8Ice Z ' ❑ CWI-2.12 ENVIRONMENTAL IMPACT 9 Q U CWI-2.13 ENVIRONMENTAL IMPACT 10 CWI-2.14 ENVIRONMENTAL IMPACT 11 Cm G O s CWI-2.15 ENVIRONMENTAL IMPACT 12 Q w w U a o° CWI-2.16 ENVIRONMENTAL IMPACT 13 W LU VICINITY MAP CWI-2.17 ENVIRONMENTAL IMPACT 14 a 'o E 1" = 1500' CWI-2.18 ENVIRONMENTAL IMPACT 15 o O C. CWI-2.19 JACK AND BORE PLAN AND PROFILE ° a CWI-2.20 WETLAND DRAINAGE AREA 1 CWI-2.21 WETLAND DRAINAGE AREA 2 =- CWI-2.22 WETLAND DRAINAGE AREA 3 Ea CWI-2.23 WETLAND DRAINAGE AREA 4 - ' Know what'sbelOW. CWI-3.0 NOTES AND DETAILS oB No. Call before you dig. 47065 _ CWI-3.1 NOTES AND DETAILS SMEETNO. CWI-o.o - E \\�/t I t r/ %•r` '�.-�.�J`- ,0 1' 1.`�� `u- � -=L�i f�L��f�ti=s_''�`�i-J � / '� ; o NOTES: \\ � ,ll)�ts ��i\� rf lr �� , 1. BOUNDARY TAKEN FROM SURVEY BY TIMMONS GROUP / (I(!//�= \\� — '�s) } � \�t\ "'' DATED JANUARY 29, 2021. I ( \�i=/ t//� a 2. TOPOGRAPHIC INFORMATION TAKEN FROM WAKE w0 COUNTY GIS AND TOPOGRAPHIC SURVEY BY TIMMONS GROUP DATE JANUARY 21, 2021. 4 ,t\ U� �i f \ • -,X O / ., \\ c c EXISTING FORCE MAIN c r r r/ ,�\ !t < z 3. THIS SUBJECT PROPERTY LIES IN ZONE 3200, PER FEMA t r W J ,�y t r ,J \ o �N FIRM PANEL 3720162900K. EFFECTIVE DATE JULY 19, s \\ , \� �V \t `. w Itl \\ \ \� ti IN,gg 1\ 1 t\ s c 2022. 11\\�\ (i\ \ � 4. WETLAND DELINEATION BY S&EC DATED JUNE 11, 2021 ( ��`,�\�� / / \\� 1 \� \ r v•\,� s tsti�sl S ( �� o AND REVIEWED BY USACE OCTOBER 19, 2021 /itg` � ( w r /��/ s `\�.@�\ ��/j = { S,t�p! t�t\\\• \` (SAW-2021-01965 AND CONFIRMED VIA EMAIL NOVEMBER s �(fi 1 y Itf• `\` '� ) !``'7",�}p�'I" ) �� /r^ `- t t \� WIN ROAD S.R.2702 J {\J I r''I� f� 5, 2021. RIPARIAN BUFFERS CONFIRMED BY NCDWR 60'PUBL/CRNV )ilt 1^►ts(Sk11{r\\ DECEMBER 7, 2021 NBRRO#21-312 s/JJf/i/�''� 8�;,.• \ G� ss t �� `' c � F oRa / /J/ ♦ i � \tr: t(� IIf \ {it 1 +� r �os�- t �_f ^•�r�r1y �A m 5. STREAM WIDTH MEASUREMENTS AT IMPACT LOCATIONS ,ate � ;\ � �, /// \ � °��r14 •/il `�"n� \ /) t a tip\ s^ \ ~' // -- 1 � - -� '` r �� COLLECTED BY TIMMONS GROUP ON 10/27/2022. `y:•SITE BOUNDARY 6. WETLAND LIMITS TAKEN FROM SURVEY COMPLETED BY ") MSS LAND CONSULTANTS, DATED JUNE 12, 2023. / r :; fiJ a•` V ♦� tit ;< a 1210412023 ( � a a ��. �,�� ,r}.;' \ _ ,,\ r 9) 1• <'l -z rs r t Cy/ � a�s r / C'ct1 tis � � o SITE DATA •W \S. � �—.... oanwN By x \ (' \ " $ JI�C,� \�� y� j„a� a r" t 11 l tl t�\l'\��'^•c .yr�. \.� � r/'!`�i l"� "�. �.. sf 3\�. �D h, tt c J/ i�..� ^.i.1 l 7 i I 331 TOTAL AREA: 131.15 AC 5,712,894 SF �ttr�.t �� _ ��''`a\ \;>; \/ i �!F'' 1 • ' ' "'`a _ r - R� EXISTING STREAM AND , DESIGNED BY ( ) tl� �1v w u�� i 1 :50'NEUSE RIPARIAN BUFFER TOTAL IMPERVIOUS: 61.33 AC (46.8%) °vN i f ".-= � V )J�A�v ►! 331 r�G:\.� 'its a L� +t �< L s��\\\ �t� �\ w )%��C�� TOTAL WETLANDS: 1.9 AC (81,643.31 SF) s1sf� s ` Y,;\�' s �,�� ~, ZL \\4Jt J C\ \ �` ^.�_�, i Jr J, ��7 CHECKED BY TOTAL STREAMS: 7,561.E LF d EXISTING 50'PIPELINE EASEMENT^ . \� \ �` �\ �¢ � � - _°jailH ^f��ri I 331 :J �\ �1 f .y. } \ i (/'J/^o �� ti J 1 "� \• gal^Y or C�� 1[l 1 '� • • SCALE 7C•�>'.rr�:., r /srsvlf �" r/r`��p°� `�� EXISTING STREAM �^� r- : igsa:,,„�\y�a '{` �';{Jj t) • 1„=soo' LEGEND rr �a r/�, \\� \ ,\\ �1,,.1`\� \~S,t!m:,fC �-^o �`�\\t.t1,J ter/ r • ■ ■ SITE BOUNDARY w �V AA l 11 \EXISTING WETLAND \\� 1 f.) Ur,f1 I�H> '� \•1 \1)\ ` - fit o - �� \ K\\�\\ CL ------------ EXISTING CONTOUR \\ !) >J I� fi1k�( N M �tP 4 Il. �i\ PROPOSED DRAINAGE EASEMENT ti�1 ° �� ; R 1„•� \ \ °N EXISTING STREAM r v v v v v EXISTING WETLANDS \� `, ,�41 mr*� �� \ \ J � t 1� �~J ,~ \ Z Jf l / I EXISTING DIRT ROAD NEUSE RIPARIAN BUFFER ZONE 1 NEUSE RIPARIAN BUFFER ZONE 2 I s?82�� ` rh - J f• �=� \ �1f :`�^ � ,iYL (s{ � ` / N^ BE REMOVED O I EXISTING FORCEMAIN SITE BOUNDARY~ � /: — i .Y \��:^�•` rtii\� 11t �(� ir y Jf� Z Ill a O I EXISTING DIRT ROAD' \\� as '• i• I\\\ t13C - o TO BE REMOVED ~`��`�e ��t p} \\t4 '` r,, a o I I i-�p `\?��c/yG \•y ? ` ff �y 'FSY n Z Z r w�a�9q� ,,-°Ge PCy d•t 1 1r \\1 t\ \ �• c ^ EXISTING PROPERTY p BOUNDARIES U o 0 a TO BE REMOVED u t C7 1. •� Z / II EXISTING BUILDING �\ ''•� �\ a •�.j�i i� 111 W Xo TO BE REMOVED l _ 1 �' Z t 1(I a w I ➢o i v M GO Z I SCALE 1"=500' o'3 MIR 0 500, 1000, Ea g Know what's below. - Call before you dig. SOB = 47065 SHEET NO. _ CWI-1.0 - AL ylly((// r�� J. '�� 'r �v O v '� r ^� i✓ cj. / ; O^ / N? 1l J Sti 3\ }� /// till `� \1\ ✓2 J /' 1 ? .,J \ate \� Ir � \ woo" s IMPACT 14CWI-2.17 2� z�vx Q l/r /, / —z •� �� ` 11�cIye �— — �v/�=�{ / JI��y�+ J r�`( � l� �\ �,,. /;` JI o� LL14 NW4 z �` t vl = •S I i //�\ II f c� u \\\ o� o ^� r l20 J// \ Efi L% Sc 4 K . 0'� t S a•r� .��• Rt\r.. ,ro 2� �. / � I I J �;� /�rirrfr/ �v v<�: 4t lyr �ra�• li lyt s� , / "' - / 0 `�\. I `_ 11 / 1\~ 1— 1 / \ �\1" �•�-.•'/ } t t I `�\\ l\. ` I r IMPACT 7 CWI-2.10 �, \ a�.F�� t Y s(lt 1�` \�- is �f f`/� y� �_- - IMPACT 13 CWI-2.16 w G t Q C J`�IMPACT i \� L *��.� i (r\1 � �L1L-�` i•\} \ IMPACT8CW`2 f � lY �. i I 1ti N o DATE i f✓Nn 1� "Sg .s\\ \ �' .1• `i�t 1\ �s 'EIN \ /iJJ// q\ II tit J o 12/04/2023 `` � � — _ �•-.--'" _ �(� �°L�Ll �� `ti - I I DRAWN BY _Y`^Y..�y� 1,t 331 IMPACT 15 CWI-2.18 ^� �{`�- dt ,C l•• DESIGNED BY IMPACT 4 CWI-2.6, ! CWI-2.19 �r� +�.. i / I', 1 \��\ \ '�w'�%a ¢r~•� ti..� f J �1 I/ • 331 CHECKED BY l. rn `� �. ' / \�'t`Y .t) �� ,., �.. �J -YE' JI • ylfl `1 ! v c 1 IMPACT 9 CWI-2.12 3: v�5 �y I .� ��' 331 IMPACT 3 CWI-2.4 • SCALE IMPACT 10 CWI-2.13 LEGEND / " "_�''�`� ";may `�e`1 "". ,r�. i!, I �a� J� • 1"=500 ■ SITE BOUNDARY )S \ vim, IMPACT 12 CWI-2.15 -- EXISTING CONTOUR !j //• /. \ \' IMPACT 2 CWI-2.3 PROPOSED CONTOUR f \ ""' `� PROPOSED DRAINAGE EASEMENT 1 AtVA Y. \\VAV�\V 11 IMPACT 5 CWI-2.7 CL EXISTING STREAM 1��ll�� I - EXISTING WETLANDS a I IMPACT 6 CWI-2.9 NEUSE RIPARIAN BUFFER ZONE 1 NEUSE RIPARIAN BUFFER ZONE 2 --fFM--- EXISTING FORCEMAIN �� rh ` \ /' Al O 9 PROPOSED SEWER "i f i ` „ �/ IMPACT 1 CWI-2.1 z 0 U.e r � -�y` v��` �� t• a a I I \ `�\� `® IMPACT 11 CWI-2.14 Q o '- rr IMPACT LEGEND o I Y Z is U 3 OQ� ® PERMANENT WETLAND - GREEN ® TEMPORARY WETLAND - MAGENTA / y/ < w a � ° Do �I PERMANENT CONVERSION TO PEM WETLAND - LIGHT PURPLE \� , • ! �$ k I Q 3 o O PERMANENT STREAM - RED w z a ® TEMPORARY STREAM - BLUE ( On >FL SCALE 1"=500' PERMANENT 20' ZONE 2 NEUSE RIPARIAN BUFFER- CYAN - 0 500' 1000' TEMPORARY 20' ZONE 2 NEUSE RIPARIAN BUFFER- PINK PERMANENT 30' ZONE 1 NEUSE RIPARIAN BUFFER - ORANGE _$ E� r- TEMPORARY 30' ZONE 1 NEUSE RIPARIAN BUFFER - LIME GREEN Know what's below. ® PERMANENT NO LOSS STREAM - DARK PURPLE 0BN0 ` Call before you dig. 47065 2 INDIRECT WETLAND -YELLOW SHEETND. ma cwr-z.o m �_E ENVIRON MENTAL I IMPACTS C, WETLAND IMPACTS STREAM IMPACTS 30'ZONE 1 BUFFER 20'70N E 2 BUFFER o IMPACT IMPACT ^E IMPACT SPECIFICATION TEMPORARY NO LOSSPERMANENT TEMPORARY PERMANENT TEMPORARY �E NUMBER SHEET T z SF AC SF AC SF AC SF AC LF SF AC LF SF AC LF SF AC SF AC SF AC SF AC SF AC ; 1 CWI-2.1 ROAD FILL 82 450 0.0103 a .v; 1 CWI-2.1 ROAD FILL - - 3,219 0.0739 a LL 1 CWI-2.1 ROAD FILL 4,407 0.1012 w o 0 a 1 CWI-2.1 5 CONSTRUCTION BUFFER - - - - - - - - - - - - - - - - - - - - - - - 455 0.0104 1 CWI-2.1 5 CONSTRUCTION BUFFER 10 36 0.0008 3 N x 1 CWI-2.1 5 CONSTRUCTION BUFFER - 1,026 0.0236 LL z o o o 1 CWI-2.1 DISSIPATION PAD CONSTRUCTION 30 149 0.0034 - 1 CWI-2.1 DISSIPATION PAD CONSTRUCTION 319 0.0073 u 2 CWI-2.3 DISSIPATION PAD CONSTRUCTION 73 0.0017 0 o 2 CWI-2.3 DRAINAGE CONSTRUCTION 368 0.0084 �� o_ - - - - - - - - - - - - - - - - - - 2 CWI-2.3 DRAINAGE CONSTRUCTION 275 0.0063 4 - - - - - - - - - - - - - - - - - - - - 2 CWI-2.3 MANHOLE INSTALLATION 11 0.0003 2 CWI-2.3 SANITARYSEWERCONSTRUCTION 2,564 0.0589 3A CWI-2.4 SANITARYSEWER STREAM CROSSING 34 141 0.0032 - - - 3A CWI-2.4 SANITARYSEWER STREAM CROSSING 1,878 0.0431 0 s 3A CWI-2.4 SANITARYSEWER STREAM CROSSING 1,276 0.0293 - - - - - - - - - - - - - - - - 3A CWI-2.4 SANITARY SEWER CONSTRUCTION - - - - - - 1,063 0.0244 - - 3A CWI-2.4 JACK AND BORE RECEIVING PIT 180 0.0041 w 3B CWI-2.4 DRAINAGE CONSTRUCTION 357 0.0082 w s 3B CWI-2.4 DRAINAGE CONSTRUCTION 240 0.0055 z a ° 3B CWI-2.4 DISSIPATION PAD CONSTRUCTION o 85 0.0020 4 4 CWI-2.6 GREENWAY CONSTRUCTION 17 103 0.0024 - DATE 4 CWI-2.6 GREENWAY CONSTRUCTION - - - 301 0.0069 0 1210412023 4 CWI-2.6 GREENWAY CONSTRUCTION - - 904 0.0208 - - DRAWN BY 4 CWI-2.6 GREENWAY CONSTRUCTION - 396 0.0091 - - 331 4 CWI-2.6 GREENWAY CONSTRUCTION 448 0.0103 - - - - - - - - - - - - - - - - - - - - - 5 CWI-2.7 ROAD FIILL 105 1,079 0.0248 • DESIGNED BY • 331 5 CWI-2.7 FLOODPLAIN BENCHING - - - - - - - - 28 633 0.0145 - - - - - - - - - - - - - - 5 CWI-2.7 5CONSTRUCTION BUFFER - 20 267 0.0061 • CHECKED BY 5 CWI-2.7 DISSI PATIO N PAD CONSTRUCTION - - - 20 197 0.0045 - - 331 5 CWI-2.7 ROAD FILLAND BENCHING 6,088 0.1398 • SCALE 5 CWI-2.7 DISSIPATION PAD CONSTRUCTION 124 0.0028 NTs 5 CWI-2.7 BANK STABILIZATION 643 0.0148 5 CWI-2.7 5 CONSTRUCTION BUFFER - 1,133 0.0260 5 CWI-2.7 DRAINAGE CONSTRUCTION 88 0.0020 - - 5 CWI-2.7 ROAD FIILL 4,405 0.1011 - 5 CWI-2.7 5CONSTRUCTIONBUFFER 605 0.0139 6 CWI-2.9 ACCESS ROAD CONSTRUCTION 562 0.0129 - - 6 CWI-2.9 5CONSTRUCTIONBUFFER - - 75 0.0017 - 6 CWI-2.9 UTILITY CONSTRUCTION - - - 241 0.0055 - 6 CWI-2.9 DISSIPATION PADCONSTRUCTION 50 0.0011 7 CWI-2.10 5'CONSTRUCTION BUFFER - 5 29 0.0007 7 CWI-2.10 ROADWIDENING 1,000 0.0230 - - O 7 CWI-2.10 5 CONSTRUCTION BUFFER - - 329 0.0076 - 7 CWI-2.10 ROADWIDENING - - 819 0.0188 z LUT 7 CWI-2.10 DISSIPATION PAD CONSTRUCTION 10 0.0002 J - 7 CWI-2.10 DRAINAGE CONSTRUCTION 86 0.0020 - - a Q 7 CWI-2.10 5CONSTRUCTIONBUFFER 200 0.0046 Q x 8 CWI-2.11 ROAD FIILL 6,599 0.1515 I--I o 8 CWI-2.11 5CONSTRUCTIONBUFFER - - 780 0.0179 z U 9 CWI-2.12 5CONSTRUCTIONBUFFER - - 129 0.0030 a a 10 CWI-2.13 GRADING 782 0.0180 10 CWI-2.13 5'CONSTRUCTION BUFFER - 319 0.0073 Q OU w Ja 11 CWI-2.14 5CONSTRUCTIONBUFFER 119 0.0027 U 3 Q Qo 12 CWI-2.15 DRAINAGE CONSTRUCTION 439 0.0101 - - N 12 CWI-2.15 DRAINAGE CONSTRUCTION 417 0.0096 w W o z < z 12 CWI-2.15 DISSIPATION PAD CONSTRUCTION 120 0.0028 w Es 12 CWI-2.15 DRAINAGE CONSTRUCTION 4 15 0.0003 z 1 13 CWI-2.16 5 CONSTRUCTION BUFFER - - 263 0.0060 O &$ 13 CWI-2.16 GRADING 110 0.0025 - - 3 14 CWI-2.17 DRAINAGE CONSTRUCTION 404 0.0093 z 2m 14 CWI-2.17 DRAINAGE CONSTRUCTION 457 0.0105 - - W =t 14 CWI-2.17 DRAINAGE CONSTRUCTION 6 17 1 0.0004 14 CWI-2.17 DISSIPATION PAD CONSTRUCTION - - 101 0.0023 14 CWI-2.17 DISSIPATION PAD CONSTRUCTION - 3 6 0.0001 - 15 CWI-2.18 LOSS OF CONNECTIVITY 690 0.0158 - s2 TOTALS: 7,993 0.1835 1,303 0.0299 241 0.0055 690 0.0158 215 2 162 0.0496 96 608 0.0140 53 352 0.0081 16,732 0.3841 3,392 0.0779 15,592 0.3579 2 090 0.0480 w E� Know whai°S below. JOB NO. c Call before you dig. 47065 �y SHEET NO. m$ CWI-2.01 a €_E 7' I i lr n I II I I m1 �� I �� //// \ l o TEMPORARY STREAM IMPACT 1 FOR 5'CONSTRUCTION BUFFER I I\ �( l // \\ i N e 10 LF,36 SF,0.0008 AC �� // / / PERMANENT NO LOSS STREAM IMPACT 1 T z E FOR DISSIPATION CONSTRUCTION PERMANENT 30'ZONE 1 BUFFER IMPACT 1 a 30 LF, 149 SF,0.0034 SF FOR DISSIPATION PAD CONSTRUCTION + 319 SF,0.0073 AC 0 o M IMPACT 1 N HEADWALL z o 6X ... �. Q LL TEMPORARY 20'ZONE 2 BUFFER IMPACT 1 283 o FOR 5'CONSTRUCTION BUFFER N 455 SF,0.0104 AC PERMANENT 20'ZONE 2 BUFFER IMPACT 1 o 5 FOR ROAD FILL 290 290 \\ 3,219 SF,0.0739 AC w PERMANENT STREAM IMPACT 1 ROPOSED GRADE FOR ROAD FILL 82 LF,450 SF,0.0103 AC 285 285 - 1 o \\ - C� \ \ > DATE l ` \ , AN 12/04/2023 12"WATER LIN TEMPORARY 30'ZONE 1 III117 /�% /rl o BUFFER IMPACT 1 \ \�I ^/ ( DRAWN EY Y// ' DRAWN FOR 5'CONSTRUCTION BUFFER 331 280 280 1,026 SF,0.0236 AC IMPACT 1 S HEADWALL • DESIGNED BY • 331 PERMANENT 30'ZONE 1 BUFFER IMPACT 1 CHECKED By CROSSING 8" DIP FOR ROAD FILL 331 SANITARY SEWER 4,407 SF,0.1012 AC • • SCALE H:1"=50' CULVERT 19 V:1", • 275 275 • DISSIPATION PA 10'X 30' �I / SCALE 1"=50' - now 0 50' 100' 270 _ 270 XISTI G GRADE LEGEND O a / ■ ■ SITE BOUNDARY z / 77 LF wo ° \ 5 ------------ EXISTING CONTOUR 36" RCP PROPOSED CONTOUR Q = o U t q�4.00/o PROPOSED DRAINAGE EASEMENT ~ 0 a r 265 265 EXISTING STREAM EXISTING WETLANDS 0 CD (0 NEUSE RIPARIAN BUFFER ZONE 1 Q Y Q 00 op r� ri M GOU a z a 6, cz co cp � ry ry 0 0 �� !�� i� NEUSE RIPARIAN BUFFER ZONE 2 � w N N N N N N 00 N 0 50 z EXISTING FORCEMAIN z Z PROFILE SCALE �S^N PROPOSED SEWER z De a O E3 11+50 12+00 13+00 14+00 14+50 IMPACTLEGEND O z °3 w IMPACT 1 CROSS SECTION PERMANENT STREAM - RED HORIZ SCALE: 1"=50' ® TEMPORARY STREAM - BLUE VERT SCALE: 1"=5 3 PERMANENT 20'ZONE 2 NEUSE RIPARIAN BUFFER- CYAN TEMPORARY 20' ZONE 2 NEUSE RIPARIAN BUFFER- PINK PERMANENT 30'ZONE 1 NEUSE RIPARIAN BUFFER- ORANGE Know what's below. TEMPORARY 30' ZONE 1 NEUSE RIPARIAN BUFFER- LIME GREEN DB ND. Call before you dig. ® 47065 _PERMANENT NO LOSS - DARK PURPLE H SHEET NO. _ CWI-2.1 - E o 290 290 �o N E u E i z ~ s 3 a .� a Q LL N W PROPOSED GRADE w°o a S 285 285 LL Z 290 290 E� a 0 7 PROPOSED GRADE 280 280 285 285 0 EXISTING GRADE o C 0 275 275 280 _ -280 DATE � 12/04/2023 DRAWN BY 331 DESIGNED BV EXISTING GRADE 270 _ 270 •• 331 FES 701 • CHECKED BY 275 18" RCP 275 331 CULVERT 1 SCALE • H:1"=50, V:11,=5' 265 265 270 270 - cv� CD CD 00 00 NN CO NN N N C LVERT 1 0 cn t 265 265 9+00 10+00 11+00 12+00 Z IMPACT 1 S HEADWALL PROFILE1z U O 0o M co co HORIZ SCALE: 1"=50' Q a o coo VERT SCALE: 1"=5 " N00 N NN NN m U - 0 Q o g a 3 Y ao 9+50 10+00 11+00 11+50 U _jo ny 5 Z IMPACT 1 N HEADWALL PROFILE Z W Q a r z a W E� HORIZ SCALE: 1"=50' a O z � VERT SCALE: 1"=5 a > �d 0 w ¢3 0 50 PROFILE SCALE c Ea • Know what's below. DB ND. Call before you dig. 47065 SHEEP NO. _ CWI 2.2 - \PERMANENT 30'ZONE 1 BUFFER IMPACT 2 /� FOR DISSIPATION PAD CONSTRUCTION LL N O M 73 SF,0.0017 AC l Z�mX PERMANENT 20'ZONE 2 BUFFER IMPACT 2 /-:--z — \\ \ FOR DRAINAGE CONSTRUCTION ` - \\ ' \ \ 275 SF,0.0063 AC g 30' SANITARY SEWER- w EASEMENT �� w 10 MH 103C PERMANENT 20'ZONE 2 BUFFER IMPACT 2 \ — \ FOR MANHOLE INSTALLATION — \ / \ \\ \ _ \ \ \ Y I \ z o 11 SF,0.0003 AC DATE 1210412023 DRAWN BY Irl 331O — \ • DESIGNED BY 331 PERMANENT 30'ZONE 1 BUFFER IMPACT 2 • CHECKED BY PERMANENT 20'ZONE 2 BUFFER IMPACT 2 ` I I I I \ \ \ _ FOR DRAINAGE CONSTRUCTION • 331 FOR SANITARY SEWER CONSTRUCTION \ 368 SF,0.0084 AC • SCALE 2,564 SF,0.0589 AC / / << 1 \ • r=zs — T Q Z J E a N Q = U mz � - �/� Q o ~ �o Vl U 3 z Lu z z �� a� Z z Q O E� O Lij G$ > o c LEGEND z o3 ■ ■ SCALE 1"=25' SITE BOUNDARY w K EXISTING CONTOUR m a PROPOSED CONTOUR o 0 25' 50' a PROPOSED DRAINAGE EASEMENT z m� EXISTING STREAM e» EXISTING WETLANDS E � IMPACT LEGEND NEUSE RIPARIAN BUFFER ZONE 1 � Know what's below. JOB NO. iiiii ii NEUSE RIPARIAN BUFFER ZONE 2 PERMANENT 20' ZONE 2 NEUSE RIPARIAN BUFFER - CYAN iCall before you dig. 47065 2 --�FM--- EXISTING FORCEMAIN W o AN— PROPOSED SEWER PERMANENT 30' ZONE 1 NEUSE RIPARIAN BUFFER- ORANGE B . n CWI-2.-2.3 €E E o �o N E i z E ~ s 3 a .� a Q LL N W w C 0 QJQ_6 X Q O:�LL Z � O N a s E H F m wo O� p O N� Z O H j K N O x U' PERMANENT 20'ZONE 2 BUFFER IMPACT 3A PERMANENT 30'ZONE 1 BUFFER IMPACT 3B i FOR JACK AND BORE RECEIVING PIT FOR DISSIPATION PAD CONSTRUCTION w 180 SF,0.0041 AC 85 SF,0.0020 AC w a z Q PERMANENT 30'ZONE 1 BUFFER IMPACT 3A PERMANENT 30'ZONE 1 BUFFER IMPACT 3B o FOR SANITARY SEWER STREAM CROSSING K DATE 1,878 SF,0.0431 AC �� FOR DRAINAGE CONSTRUCTION o 1210412023 \\ \\\ 240 SF,0.0055 AC \ DRAWN BY 331 rRJ DIP \ _ /� PERMANENT 20'ZONE 2 BUFFER DES PERMANENT TEMPORARY STREAM IMPACT 3A _ \ \ r IMPACT 313 •� 331 FOR SANITARY SEWER N N\\ \ \ \ / \ �✓ �\\\ FOR DRAINAGE CONSTRUCTION CHECKED BY STREAM CROSSING \ = 1 1 I \ `�� \\ \\ \ \\� 357 SF,0.0082 AC • 331 34 LF, 141 SF,0.0032 AC L vv ' r,/ -� /_ \ • • SCALE $ ��G��s�.......�........_._'_2' ...casss-:=�f��_�� S I 1, 7 v PERMANENT 20'ZONE 2 BUFFER IMPACT 3A MH 102 (5' FOR SANITARY SEWER CONSTRUCTION 161. STEEL 1 I ` 1,063 SF,0.0244 AC PERMANENT 20'ZONE 2 BUFFER IMPACT 3A / 1 V FOR SANITARY SEWER STREAM CROSSING 11�,/ 1,276 SF,0.0293 AC O a Zo M Q U o Q a z a r m � � 7 J °O 3a Q a z U o M � Lu DoD ao a z z Z Oz < E� SCALE 1"=50' > o LEGEND w O ■ ■ SITE BOUNDARY 0 5O' 1OO' EXISTING CONTOUR � o PROPOSED CONTOUR PROPOSED DRAINAGE EASEMENT - EXISTING STREAM IMPACT LEGEND W W W W W W EXISTING WETLANDS �_ NEUSE RIPARIAN BUFFER ZONE 1 ® TEMPORARY STREAM - BLUE - Know whattbelow. ii,ii ,i .;i NEUSE RIPARIAN BUFFER ZONE 2 PERMANENT 20' ZONE 2 NEUSE RIPARIAN BUFFER- CYAN OB ND. Call Mom you dig. EXISTING FORCEMAIN � 47065 �SAN PROPOSED SEWER - PERMANENT 30 ZONE 1 NEUSE RIPARIAN BUFFER- ORANGE SHEET NO. _ CWI-2.4 F E 280 280 0 MH 101 (5') MH 10 A(5) E TOP 269.35 TOP 74.43 U E z INV IN 253.20 ( H 102 (6)) INV IN 255.17 (MH 10313) a INV OUT 253.00 (MH 100 (6')) INV OUT 254.97 (MH 103 (5')) a LL LL N O M 275 M H 102 ( 275 1 TOP 269.62 PROPOSED GRADE °LL 0 INV IN 253.74 (MH 103 (5') 2 ° a INV OUT 253.54 (MH 101 ( ')) ~� w in rn p APPROX. STREAM J 270 ENTER NE 27 I 265 265LJ w EXISTING ' o ° GRADE I ' DATE 1 � 12/04/2023 \ ' DRAWN By 331 260 I 260 DESIGNED • ED BY • 331 • CHECKED BY • 331 I 42" • • SCALE • H:1"=50' • V:1"=5' 255 255 • 79 LF 1I89 LF 68 LF 8" PVC - SDR 26 16' STEEL 8" PVC - SDR 6 @ 0.50% @ 0.50% 128 LF I - @ 0.50% 8" RJ DIP 250 % 250 0.50 TOP 269.50 O a LU INV IN 254.33 (MH 103A (5')) Z INV IN 254.33 (MH 105 (5')) I o INV OUT 254.13 (MH 102 (5')) Q a 245 245 ° M U 7 ct� fl ° U a< 39°� a N N N N ny Z Df W o� z LLJ E� 10+00 11+00 12+00 13+00 13+50 O z OWN IMPACT 3A PROFILE 5 ; t HORIZ SCALE: 1"=50' w a= VERT SCALE: 1"=5 3 Ea Know what's below. 0 0 50 Call before you dig. 7 6 PROFILE SCALE 405 SHEET NO. _ CWI-2.5 F E E o �o N E i z E ~ s 3 a .� 275 275 o � Q LL N W Z J bpi APPROXIMATE STREAM o< z CENTERLINE a E c� w 0 270 WOODEN BRIDGE_ 270 4„ z DESIGNED BY OTHERS PERMANENT 20'ZONE 2 BUFFER IMPACT 4 PERMANENT 30'ZONE 1 BUFFER IMPACT 4 J o FOR GREENWAY CONSTRUCTION FOR GREENWAY CONSTRUCTION ~ w 396 SF,0.0091 AC 301 SF,0.0069 AC ui 0 265 � 265 a PROPOSED 1 I l \4 / \ l I / ` \ 1 � � DATE GRADE = _ — �_ ��\ 6' WOODEN BRIDGE �� o 1210412023 260 EXISTING GRADE�60 �\ �/ 7�\ \/ I/ � —� ` \� \ DRAWN BY 331 r1 � � • DESIGNED BY 1,1 j � +� ♦� ► 1ri/ iTr 'c {{� ' r • 331 1 "_ \ 1 \ I ` 1 ■ r ■��_�M —r la _��y� II I ice. L.'- TI ---- I _ LL- CHECKED BY 331 f� l ``' -'..___ -_-_�_ ` • • SCALE 255 255 �- N^vim" \ \ \V`^� / L : AS SHOWN 00 I \ I 00 N N N N N TEMPORARY 20'ZONE 2 BUFFER IMPACT 4 FOR GREENWAY CONSTRUCTION 448 SF,0.0103 AC _ 9+50 10+00 11+00 12+00 TEMPORARY 30'ZONE1 BUFFER IMPACT 4 IMPACT 4 GREENWAY PROFILE FOR GREENWAY CONSTRUCTION O 904 SF,0.0208 AC HORIZ SCALE: 1"=50' Z VERT SCALE: 1"=5 TEMPORARY STREAM IMPACT 4 o FOR GREENWAY CONSTRUCTION Q = 17 LF, 103 SF,0.0024 AC o a r z o Q 3 5 Ua z � w z z � vo SCALE 1"=20' z z O00 Eo NOR LEGEND Z 0 20' 40' O z °3 0 ■ ■ SITE BOUNDARY w EXISTING CONTOUR IMPACT LEGEND 0 50 PROFILE SCALE PROPOSED CONTOUR ®PROPOSED DRAINAGE EASEMENT TEMPORARY STREAM - BLUE EXISTING STREAM PERMANENT 20' ZONE 2 NEUSE RIPARIAN BUFFER- CYAN y EXISTING WETLANDS PERMANENT 30'ZONE 1 NEUSE RIPARIAN BUFFER- ORANGE Ea NEUSE RIPARIAN BUFFER ZONE 1 Know whatt beam. i ii ii ii 'ii NEUSE RIPARIAN BUFFER ZONE 2 TEMPORARY 20'ZONE 2 NEUSE RIPARIAN BUFFER- PINK16, ]OB NO. Cali before you dig. EXISTING FORCEMAIN ® TEMPORARY 30' ZONE 1 NEUSE RIPARIAN BUFFER- LIGHT GREEN 47065 �� PROPOSED SEWER SHEETNO. CWI-2.6 F E E 0 N E V£ ffid LL C O NORTH WEST HEADWALL t CA 10 a x VA oLL zo L /G \` AC \ CULVERT 2A w TEMPORARY 30'ZONE 1 IMPACT 5 Z/ �/ FOR 5'CONSTRUCTION BUFFER ' e SOUTH EAST HEADWALL w 1,133 SF,0.0260 AC �O PERMANENT 30'ZONE 1 IMPACT 5 \\\ IL FOR STORM DRAINAGE CONSTRUCTION o 88 SF,0.0020 AC PERMANENT 30'ZONE 1 \ r IMPACT 11 i l i TEMPORARY STREAM IMPACT 5 i i h �� FOR DISSIPATION / FOR 5'CONSTRUCTION BUFFER o 20 LF,267 SF,0.0061 AC PAD CONSTRUCTION 124 SF,0.0028 AC > DATE \� <(t 1 210 412 02 3 DRAWN BY \ I 0I PERMANENT STREAM IMPACT 5 '4 331 FOR FLOODPLAIN BENCHING k. ^ / PERMANENT 30'ZONE 1 IMPACT 5 • DBBIGNBD BY / 28 LF,633 SF,0.0145 AC \ / FOR BANK STABILIZATION 331 (SEE SHEET CWI-3.0 FOR DETAIL) �• CHECKED BY PERMANENT 20'ZONE 2 IMPACT 5 / 643 SF,0.0148 AC 331 FOR ROAD FILL ! / / BEALE � / I 4,405 SF,0.1011 AC / PERMANENT NO LOSS IMPACT 5 FOR DISSIPATION • ` T PAD CONSTRUCTION PROPOSED BANK , 20 LF, 197 SF,0.0045 AC / STABILIZATION / / / - / (SEE SHEET CWI-3.0 / / / CULVERT 2B DETAIL B16) 1� TEMPORARY 20'ZONE 2 IMPACT 5 / yy PROPOSED FOR 5'CONSTRUCTION BUFFER, \ PERMANENT STREAM IMPACT 5 FLOODPLAIN 605 SF,0.0139 A o-"FOR ROAD FILL O BENCHING 105 LF, 1,079 SF,0.0248 AC a \ Z M 10 \� a Ln V/ U PERMANENT 30'ZONE 1 IMPACT 5 Q ? r i FOR ROAD FILL AND BENCHING r-i .6,088 SF,0.1398 AC a � a IMPACT LEGEND Cm Z o G O J s PERMANENT STREAM - RED Q Y Q ® TEMPORARY STREAM - BLUE ZDf z PERMANENT 20'ZONE 2 NEUSE RIPARIAN BUFFER- CYAN E �o PERMANENT 30'ZONE 1 NEUSE RIPARIAN BUFFER- ORANGE O z ® LEGEND w PERMANENT NO LOSS - DARK PURPLE �v ■ ■ SITE BOUNDARY TEMPORARY 20'ZONE 2 NEUSE RIPARIAN BUFFER- PINK ------------ EXISTING CONTOUR 00 a= f � TEMPORARY 30' ZONE 1 NEUSE RIPARIAN BUFFER- LIGHT GREEN o PROPOSED CONTOUR a PROPOSED DRAINAGE EASEMENT z ° EXISTING STREAM SCALE 1°=50' W W W W EXISTING WETLANDS - Know what%below. I NEUSE RIPARIAN BUFFER ZONE 1 JOB NO _ Call before you dig. 0 50' 100' �� i�"�� NEUSE RIPARIAN BUFFER ZONE 2 47065 _ EXISTING FORCEMAIN sHEE NNo. lSAN PROPOSED SEWER Cw7-2.7 d d F E 0 s PROPOSED GRADE E V£ PROPOSED GRADE 280 280 270 270 z3 w 3 d 0 a o M 275 275 265 265 =vim CONTRACTOR TO CALL ENGINEER " 5 x WHEN CULVERTS ARE o o o 270 12"WATERLINE 270 STAKED AND AGAIN 260 260 IMMEDIATELY PRIOR TO CONSTRUCTION OF HEADWALLS EXISTING)II ° 0 8" ORCE MAIN `� GRADE 265 265 255 255 w BAFFLES(SEE SHEET CWI-3.1) HIGH FLOW 260 260 250 LOW FLOW(STREAM) — (FLOODPLAIN) 250 90 LF CULVERT 2B 7'X 12' 90 LF o 255 255 245 @ 1.71%— @1.7R1 CP% 245 10 CULVERT#2A TX 12' BOX CULVERT °ATE 250 250 90 LF @1.71% 240 240 0 1210412023 INV UP: 253.70' (BURIED 12" IN STREAM CHANNEL) DRAWN BV 331 EXISTING GRADE INV DOWN: 252.16' (BURIED 12" STREAM CHANNEL) o M co 0 o o 0 O CO rn mNt DESIGNED EV 245 245 CUSTOM SKEW ANGLE TO MATCH STREAM CL a ao 06 00 ri ri •� 331 N NN NN NN NN NN NN N CHECKED BY M rv� K • 331 N QO 00 M M M V O • • SCALE N N N N N N N N N 9+50 10+00 11+00 12+00 13+00 14+00 14+50 275 275 IMPACT 5 SE HEADWALL PROFILE o 9+50 10+00 11+00 12+00 13+00 13+50 HORIZ SCALE: 1"=50' M PACT 5 CROSS SECTION 2A 27o PROPOSED GRADE 270 VERT SCALE: 1"=5 HORIZ SCALE: 1"=50' VERT SCALE: 1"=5 265 265 O EXISTING GRADE � z J A 260 260 ° " O U a a HIGH FLOW Q = a LOW FLOW(STREAM) �— (FLOODPLAIN) r-i ° L 255 CULVERT2A CULVERT2B 255 Z 90 LF 90 LF ? Q TX 12' 60"RCP (� ° 250 @ 1.71% @ 1.71% U <250 r/ Y of a z Lat Z z a w a E� 245 245 2 z 5 O cv a/ O 3 ti O w O O M O > v 9+00 10+00 11+00 12+00 13+00 13+50 0 • IMPACT 5 NW HEADWALL PROFILE PROFILE SCALE Know what's below. HORIZ SCALE: 1"=50' D66 Call before you any. � 47065 _ VERT SCALE: 1"=5 S„EETN CWI-2.8 F E o PERMANENT CONVERSION TO PEM WETLAND IMPACT 6 FOR UTILITY CONSTRUCTION N E 275 275 241 SF,0.0055 AC E z� ~ s 3 a .� PERMANENT WETLAND IMPACT 6 PROPOSED GRADE FOR DISSIPATION PAD CONSTRUCTION a LL 50 SF,0.0011 AC a m � O M 10 DISSIPATION PAD Vol, A _ / ~ w 8" DIP 265 70 LF 265 Ig'. 0 o w 644Ac 'PUMP STATION EXISTING GRADE I o 210412023 260 260 VARIABLE WIDTH x I. , PUBLIC UTILITY DRAWN By EASEMENT 331 DESIGNED BY 331 45 TEMPORARY WETLAND IMPACT 6 �• CHECK ED BY PERMANENT WETLAND IMPACT 6 FOR 255 255 FOR ACCESS ROAD CONSTRUCTION �/ / 75 SF, BUFFER • 331 / ,0.0017 AC � • SCALE 562 SF,0.0129 AC / / / / I i • v:ill -s0' PROPOSED 8" PVC SDR-26 I / ,/ / G 250 250 L o 0o ti o L6 �6 O N N NN N LEGEND ■ ■ SITE BOUNDARY o ------------ 9+50 10+00 11+00 12+00 EXISTING CONTOUR u PROPOSED CONTOUR Q ? U t PROPOSED DRAINAGE EASEMENT ° Q IMPACT 6 PROFILE 5 0c z a r HORIZ SCALE: 1"=50' EXISTING STREAM m VERT SCALE: 1"=5 W W EXISTING WETLANDS o Q 3 NEUSE RIPARIAN BUFFER ZONE 1 Q Y z Ua zap NEUSE RIPARIAN BUFFER ZONE 2 w EXISTING FORCEMAIN Z Z 0 BAN PROPOSED SEWER < E 0 50 °v O z �3 PROFILE SCALE LU o ¢3 (h - °° IMPACT LEGEND z FT-d pm PERMANENT WETLAND - GREEN Ea Know wha#'sbelow. SCALE 1"=50' ® TEMPORARY WETLAND - MAGENTA _ ]OB NO. Call before you dig. ® PERMANENT CONVERSION TO PEM WETLAND - LIGHT PURPLE 47065 0 50' 160, SHEEP NO. _ CWI-2.9 - E C, �o N E u E i z ~ s 3 a .� a Q LL N W w C 0 NEW PAVEMENT FOR ROAD WIDENING QJa X Q C LL Z K Efi PROPOSED R/W ► I I �i / \ 0 PERMANENT 30'ZONE 1 BUFFER IMPACT 7 � 11 `--�`• FOR ROAD WIDENING � z o 1000 SF,0.0230 AC CDATE 1210412023 DRAWN BY 331 TEMPORARY 30'ZONE 1 BUFFER IMPACT 7 DESIGNED BY FOR 5'CONSTRUCTION BUFFER • 331 329 SF,0.0076 AC CHECKED BY 1 Mil / A 331 �P l I If \ \ • • SCALE / ♦ \ \ ` \ 0 • 0 • TEMPORARY STREAM IMPACT 7 a FOR 5'CONSTRUCTION BUFFER z 5 LF,29 SF,0.0007 AC My ��," ' ! v \ SCALE 1"=20' 0 20' 40' a LEGEND i'r1 \ \ ■ ■ SITE BOUNDARY = PERMANENT 20'ZONE 2 BUFFER IMPACT 7 / / / / J EXISTING CONTOUR Q o Q FOR ROAD WIDENING OZ� / PROPOSED CONTOUR Z a r 819 SF,0.0188 AC 1 TEMPORARY 20'ZONE 2 BUFFER IMPACT 7 m PROPOSED DRAINAGE EASEMENT FOR 5'CONSTRUCTION BUFFER 200 SF,0.0046 AC EXISTING STREAM Q ° Q 9 EXISTING WETLANDS U < w ¢Yo / NEUSE RIPARIAN BUFFER ZONE 1 W alo PERMANENT 20'ZONE 2 BUFFER IMPACT 7 Z Z FOR DRAINAGE CONSTRUCTION i ii ii ii ii NEUSE RIPARIAN BUFFER ZONE 2 z < O E V 86 SF,0.0020 AC EXISTING FORCEMAIN a .............. PROPOSED SEWER z 1 I v w0 3 1a IMPACT LEGEND 03 PERMANENT 20' ZONE 2 NEUSE RIPARIAN BUFFER- CYAN = PERMANENT 20'ZONE 2 BUFFER IMPACT 7 FOR DISSIPATION PAD CONSTRUCTION PERMANENT 30'ZONE 1 NEUSE RIPARIAN BUFFER- ORANGE V 10 SF,0.0002 AC E TEMPORARY 20'ZONE 2 NEUSE RIPARIAN BUFFER - PINK _ Know whanbelow. ' TEMPORARY 30' ZONE 1 NEUSE RIPARIAN BUFFER- LIGHT GREEN DBND. Call before you dig. ® 47065 =_ TEMPORARY STREAM IMPACT- BLUE SHEET NO. Cwr-2.10 d- �E E o \ \ \ 1 i z > I i �� -6 LL I�C\ In ti \ O O N y z OF! 22C-x kP44 \ V \ \� . v�S!/fv`i♦A /\ \V v \ s q-Z ax \\t> \ \ �� o \ \ TEMPORARY WETLAND IMPACT 8 \\ \ \ \ o X \ \ \ \ FOR 5'CONSTRUCTION BUFFER w✓ \ II / 780 SF,0.0179 AC DATE 12/04/2023 .. \\ rA DRAWN 7, Y 331 I w \ \ \ \,\ / \ \ / DESIGNED BY - \ V A� \� v\\ 331 I\ , \\\ \I , \ \ '\ \ \ 1/ \ \ • CHECKED BY �X \ \� \�- — A\ \V A I�/ A / A 331 / . \ \ ♦\ /may \ ♦ W \1/ ` • • SCALE CL PERMANENT WETLAND IMPACT 8 cP%/ FOR ROAD FILL %i z 6,599 SF,0.1515 AC 0 �� \ a 0 �� \ \ Q v ■LEGEND SITE BOUNDARY EXISTING CONTOUR o PROPOSED CONTOUR Q o Q 3 PROPOSED DRAINAGE EASEMENT U 3 w a° - EXISTING STREAM vo W EXISTING WETLANDS z a O E NEUSE RIPARIAN BUFFER ZONE 1 — a NEUSE RIPARIAN BUFFER ZONE 2 z 3 w o„ --�FM--- EXISTING FORCEMAIN �SAN PROPOSED SEWER o M 5 o IMPACT LEGEND 3 z - PERMANENT WETLAND - GREEN -_ SCALE 1"=25' TEMPORARY WETLAND - MAGENTA E 06 0 25' 50' \ DB 6 47065 72 EE C 72.11 3 E E o �o �E U i Z ~ t 3 a i Q 0 N F� � _ ~ w O _ x _ — ✓ ✓ / o w / � s DATE 12/04/2023 \ DRAWN BY TEMPORARYY WETLAND IMPACT 9,�Y \\\\��Y/ / \\WII 331 \ \ _ FOR 5'CONSTRUCTION BUFFER — 7 • DESIGNED BY 129 SF,0.0030 AC � 331 \ -- \ _�_ \ I / Y \ I • CHECKED BY \ � � \ \ � _ / / • 331 \ � \ _ • • SCALE \ � r CL O a r o LEGEND Q u ■ ■ SITE BOUNDARY o a r ------------ EXISTING CONTOUR m r 2 PROPOSED CONTOUR o Q PROPOSED DRAINAGE EASEMENT Q 3 Y < va EXISTING STREAM U < w � W W EXISTING WETLANDS W z Df z O r NEUSE RIPARIAN BUFFER ZONE 1 < � Eo NEUSE RIPARIAN BUFFER ZONE 2 > o --fFM--- EXISTING FORCEMAIN O z w o„ BAN PROPOSED SEWER v M o o IMPACT LEGEND 3 z - ® TEMPORARY WETLAND - MAGENTA SCALE 1"=20' 0 20' 40' 47065 065 SHEEP NO. _ CWI-2.12 d_ E C, �o N E U i Z ~ t 3 ¢ .� a Q LL N W O o" _ N // ZJa¢ / In � / o I / Sw I \ \ o J i w TEMPORARY WETLAND IMPACT 10 0 ° 5'CONSTRUCTION BUFFER DATE 319 SF,0.0073 AC o 1210412023 DRAWN BY 331 DESIGNED BY I I I I \ // •• 331 \ D // - / • CHECKED BY / 331 / ► I ;/ / i SCALE I r � PERMANENT WETLAND IMPACT 10 FOR GRADING 782 SF,0.0180 AC , _ -\� _ _ - / CL O a Z J E Q 0 � U LEGEND Ut . ■ SITE BOUNDARY 0 a z EXISTING CONTOUR g PROPOSED CONTOUR o J PROPOSED DRAINAGE EASEMENT Q w Q Y H �o EXISTING STREAM U 3 w --N EXISTING WETLANDS W z Z „ NEUSE RIPARIAN BUFFER ZONE 1 NEUSE RIPARIAN BUFFER ZONE 2 > -- FM--- EXISTING FORCEMAIN O Z N3 �SAN PROPOSED SEWER LLJ a mm o IMPACT LEGEND o� z m= ® PERMANENT WETLAND - GREEN „ SCALE 1"=20' ® TEMPORARY WETLAND - MAGENTA E° � am 0 20' 40' SOB 47065 y SHEET NO. m$ CWI-2.13 a E E o �o N E U i Z ~ t 3 a Q LL N W 0 0" Q 6'aLL Z Z E V K H F 6 u o� p N� Z I I 1 I I I K 1 ` o S O O C DATE 1210412023 DRAWN BY ' I I DESIGNED BY \ �� \ I •• 331 • ` \ \ \ \ \ CHECKED BY 331 1 I ' / I / I / 1 • SCALE I TEMPORARY 20'ZONE 2 BUFFER IMPACT 11 r 1 I FOR 5 CONSTRUCTION BUFFER 1 119 SF,0.0027 AC 1 1 C - - , I I I I I I I . 1 1 Ii ° U rI LEGEND Q = U U ■ ■ SITE BOUNDARY ° a r ------------ EXISTING CONTOUR CID r g PROPOSED CONTOUR o J 3 PROPOSED DRAINAGE EASEMENT Q Y EXISTING STREAM U �: w a-, EXISTING WETLANDS W Z z r Df O NEUSE RIPARIAN BUFFER ZONE 1 E NEUSE RIPARIAN BUFFER ZONE 2 O j --�FM--- EXISTING FORCEMAIN z 3 wH BAN PROPOSED SEWER 00 z SCALE 1"-20' a IMPACT LEGEND 0 20' 40' 47065 TEMPORARY 20' ZONE 2 NEUSE RIPARIAN BUFFER- PINK 065 SHEEP NO. _ CWI-2.14 d_ E o �o N E i z E ~ s 3 a .� a Q LL N W w C 0 QJQ-6 X Q O:�LL Z � O N a s E H F m wo O� p.y O� N� Z O N / I / o PERMANENT 20'ZONE 2 BUFFER IMPACT 12 FOR DRAINAGE CONSTRUCTION 417 SF,0.0096 AC DATE 1210412023 DRAWN BY 331 Q z I • DESIGNED BY PERMANENT 30'ZONE 1 BUFFER IMPACT 12 / / % 1 — — • 331 FOR DRAINAGE CONSTRUCTION CHECKED BY SCALE 1"=20' 439 SF,0.0101 AC / / PERMANENT 30'ZONE 1 BUFFER IMPACT 12 • 331 FOR DISSIPATION PAD CONSTRUCTION • SCALE / I 120 SF,0.0027 AC • AS NOTED 0 20' 40' / • • 1 I TEMPORARY STREAM IMPACT 12 z rr r FOR DRAINAGE CONSTRUCTION o T fir/r \111 r 4 LF, 15 SF,0.0003 AC N / Q x I.- Vl Q o Q w U z '1 ° Z Df W o� Z z 0 E� LEGEND LU O Z 3 ■ ■ SITE BOUNDARY EXISTING CONTOUR � o PROPOSED CONTOUR PROPOSED DRAINAGE EASEMENT - EXISTING STREAM IMPACT LEGEND W W W W W W EXISTING WETLANDS �_ NEUSE RIPARIAN BUFFER ZONE 1 ® TEMPORARY STREAM — BLUE o— Know whattbelow. ii,ii ,i .;i NEUSE RIPARIAN BUFFER ZONE 2 PERMANENT 20' ZONE 2 NEUSE RIPARIAN BUFFER— CYANo OB ND. Call More you dig. EXISTINGFORCEMAIN 47065 -SAN PROPOSED SEWER PERMANENT 30 ZONE 1 NEUSE RIPARIAN BUFFER— ORANGE SHEET NO. _ CWI-2.15 F E E o �o N E U i Z ~ t 3 ¢ .� a Q LL N W O o" Z W N O 3 Q X Q 6 a LL Z O rn i E D U O� p N 2 O rl Efi / O nDATE -' _ L %' ��JV \ / / 0 12/04/2023 TEMPORARY 20'ZONE 2 BUFFER IMPACT 13 DRAWN BY FOR 5'CONSTRUCTION BUFFER 331 263 SF,0.0060 AC DESIGNED BY i / — — \ •• 331 \ J = — / \` — _ • CHECKED BY SCALE 1"=50' \�� '� / /_ /�� : • 331 17' SCALE MIR AS NOTED 0 50' 100' — PERMANENT 20'ZONE 2 BUFFER IMPACT 13 FOR GRADING 110 SF,0.0025 AC � � 1 ^\ � — ✓ � - - < U c � 0 aW � z 0 J � Q Y � la U3 zQ Z z go W o� Z ;. LU O z ng LEGEND ow z �_ o ■ ■ SITE BOUNDARY g z EXISTING CONTOUR � `L PROPOSED CONTOUR PROPOSED DRAINAGE EASEMENT EXISTING STREAM 2 v v W W W EXISTING WETLANDS IMPACT LEGEND w$ xm � NEUSE RIPARIAN BUFFER ZONE 1 a= ' Know what's below. NEUSE RIPARIAN BUFFER ZONE 2 ® PERMANENT 20' ZONE 2 NEUSE RIPARIAN BUFFER- CYAN JOBNG. CaII beforeyoudig. _—�FM--_ EXISTING FORCEMAIN TEMPORARY 20'ZONE 2 NEUSE RIPARIAN BUFFER- PINK 47065 y PROPOSED SEWER SHEE NO. mma $ CWI-2.16 a E E C, �o N E u E i z ~ s 3 a .� a Q LL N W w C 0 QJQ-6 X Q O LL Z � O N a s E H TEMPORARY STREAM IMPACT 14 o m FOR DRAINAGE CONSTRUCTION o 6 LF, 17 SF,0.004 AC PERMANENT 30'ZONE 1 BUFFER IMPACT 14 \ I I \ \ I FOR DRAINAGE CONSTRUCTION 457 SF,0.0105 AC PERMANENT NO LOSS STREAM IMPACT 14 0 0 FOR DISSIPATION PAD CONSTRUCTION oo PERMANENT 20'ZONE 2 BUFFER IMPACT 14 \ \ — �\ \` �, 3 LF,6 SF,0.0001 AC o 1210412023 a FOR DRAINAGE CONSTRUCTION — _ \ \=\ — \mil DRAWN BY _ z 404 SF,0.0093 AC — \ \\ \ \ \ % \ — \\ \ \\� dl �� \ J 331 DESIGNED BY \ \ ` \ _ �\ \ •• 331 \ \ CHECKED BY SCALE 1"=50' vyv;�� v— _ ��\ \ — ` • 331 _ \ \ \ \ \\ + I I • • SCALE . vv ..�,I I I 1 / / • as NOTED 0 50' 100, \ PERMANENT 30'ZONE 1 BUFFER IMPACT 14 FOR DISSIPATION PAD CONSTRUCTION 101 SF,0.0023 AC � I !\ , I I ►�IIIIII\ , J�I 11/ 1 Ilk\I,I I I I`I I I I 11 1 I O 11 I z U o U oC Z a Vl Q o a w U z '° Z Df W o Z z 0 E� LEGEND LU O Z 3 ■ ■ SITE BOUNDARY EXISTING CONTOUR � o PROPOSED CONTOUR PROPOSED DRAINAGE EASEMENT IMPACT LEGEND EXISTING STREAM v W W W W W W EXISTING WETLANDS ® TEMPORARY STREAM - BLUE Ea NEUSE RIPARIAN BUFFER ZONE 1 PERMANENT 20' ZONE 2 NEUSE RIPARIAN BUFFER- CYAN Know what's below. NEUSE RIPARIAN BUFFER ZONE 2 PERMANENT 30' ZONE 1 NEUSE RIPARIAN BUFFER- ORANGE ICE NO. -- Callbef 47065oreyoudig. _—�FM-- EXISTING q --SAN PROPOSED SEWER SHEET NO. CWI-2.17 F E E C, �o �E U Ei Z ~ t 3 ¢ .� 11 a Q LL N W O o" Z W N O 3 Q X Q 6 a LL Z O rn i E D U O� p Efi Sw N� Z O \ \ \ \ I \ \ \ \ \ y— \ \ 1 \\ r > a ~ 1 I l z o I to I z DATE 6(4FC I I / 1210412023 I - \ \ ( DRAWN BY 331 J`� \ J / I I • DESIGNED BY I�\\\ I \ `) \ \ •• 331 / CHECKEKE D BY • 331 // / .��I W 1 \ ` �— ^ • • SCALE AS NOTED INDIRECT WETLAND IMPACT 15 FOR LOSS OF CONNECTIVITY — \_ - - - - - - - -690 SF,0.0158AC CL y a O L Q ,39 o a � z � m 0 J Q U3 zQ1. Z z ao W o� Z ;. m O a8 pm °' LEGEND z N3 LU o z ■ ■ SITE BOUNDARY g EXISTING CONTOUR `= SCALE 1"=50' PROPOSED CONTOUR mg PROPOSED DRAINAGE EASEMENT 0 50' 100, EXISTING STREAM 2 EXISTING WETLANDS =$ NEUSE RIPARIAN BUFFER ZONE 1 IMPACT LEGEND xm ' Know whatlsbelow. ///j////j///j NEUSE RIPARIAN BUFFER ZONE 2 Callbefore you dig. oeNo. INDIRECT WETLAND -YELLOW 47065 _—�FM--_ EXISTINGFORCEMAIN SHEEND. m$ BAN PROPOSED SEWER Oma CWI-2.18 w E E o �o N E i z E ~ s 3 0 8 RJ D" IP! .�o o M IMPACT 3A ^°X SEE SHEET CWI-2,4 NOTE: SANITARY SEWER FOR DETAILS �— // = >" EASEMENT TO BE ACCESSIBLE 9+8 10+ I I // 1+ 1 +50 +00 a FROM BOTH SIDES OF STREAM CROSSING � � w PROPOSED RECEIVING PIT C��r,►� ( �� _ I / N 30' PUBLIC SANITARY _ 0 I o + SEWER EASEMENT 29,6 o t. � SANITARY SEWER / .. JACK Al a a z p 0 IMPACT 36 SEE SHEET CWI-2.4 K DATE 1210412023 FOR DETAILS DRAWN BY 331 PROPOSED GRADE DESIGNED BY MH 103 (5') MH 105 (5') 331 •� TOP270.13 CHECKED BY TOP 269.50 331 NV IN 254.33 (MH 103A(5')) INV IN 257.90 (MH 106) SCALE 275 INV IN 257.90 (MkVt05A) 0 AS NOTED INV OUT 254.1 (MH 102 (5')) INV OUT 25 .90 (MH 103 (5')) • 270 270 10'X 0' RECE VING PIT 265 265 _ v ✓ 260 260 O I V.� Z w 1 J Jo 0 U— i 255 255 a O Irm 316 LF Q a ~ � 18" 21" g" RJ DIP ° za 250 0.50% 250 rYl Q � 1 " STEEL a 0 z 3 W gv . 0 Y d o 245 @ 0.50/0 245 U w ny Z D To W O ➢� z a m E� 70 co M N tr) M N cow 0a LEGEND N N N N N N N N N Y SCALE 1"=50' SITE BOUNDARY 5— QL EXISTING CONTOUR r, = PROPOSED CONTOUR 0 50' 100' PROPOSED DRAINAGE EASEMENT 8+50 9+00 10+00 11+00 12+00 13+00 14+00 14+50 EXISTING STREAM JACK AND BORE PROFILE - W W W W W W EXISTING WETLANDS HORIZ SCALE: 1"=50' 0 NEUSE RIPARIAN BUFFER ZONE 1 VERT SCALE: 1"=5 0 50 KI10wwhat'S below. i��ii�ii�i i%i 16, NEUSE RIPARIAN BUFFER ZONE 2 OR ND. Call before u di PROFILE SCALE g• EXISTING FORCEMAIN 47065 -SAN _ PROPOSED SEWER SHEET NO. CWI-2.19 F E E o oc ` > / \� \\ A, � \` \ `'�,��\\ NPNZP C oWvi <LL—ap PRE DEV. POI 1 �s ° ) ! o r i 14 1 ~ \ L M �Q1�J•r`'(�,.1.. \ \ ✓ f to \` -g1 ' AREA: 10.02 AC ti z i i \ I 1 f�y ( 'E) % J o In ww �J"`J � �� , ��,�'i I � �� r y l �� 0 f S )r \_ ��fY.� � 1 �(f�t/1 I r 1 ( ( c ILn Sw \ 1 � \ � 1 Lf tC /4 n o^• ? � C ///, J � , / f)/ f / i \ t �� { Jj Iv /i\ C �� 11'I \ \ , \ \ \ , J ` l \ ( L v I`\ 1\ e ` �r i / o ` ��1 t w r S •f n\ I .\ \ ( ,. A � 1 L\ ( S >0 r or10 < \ ( \ \\ \ \�( (t ( �j ) \ \ II ( /, I -� I I \\ \ `1\` > DATE \� ( � )\l \ \ \ \ "' \ oy 12/04/2023 I' \~ DRAWN BY 331 / f �J /rr ( ) L � \ ` t\\ \ L C1 \\! • DESGNED BY _ o \ I '� r _ l7 331 —`— / r I ` \O1 I \ \ �\\ ` y�y )t� • ^..\ __ )i \ ~ �1 Iw. • CHECKED BY C L \ ( ((� \ I 1 J l I ) ` l J ) � ` � \ � \ \ L � • 331 POST DEV. POI 1 { • • SCALE j5 \ r 1 ) /fi,/ o/ ? o , I 1—crs 7v t ( r ► /J 1 \ A r /\�� ) \ i( AREA: 14.75 AC • \ � I/ 1 \ • �� ' ,' _` CN: 65 p 1 1J < 1 r " \ t O Cp c9/I — �Z I >, r 1 I ( \ ♦ � \ lam° ~ 1 \� ) \' w / <r/ 1 j \ ! \ Illli \ \ Iv / (� 1 1 \ J/ 7 / �� . < n\ v /i , I \ I I \ d c J(1 !r 1\)° 1 . J I ( (! ) r l � /fi / /_� / /I � _/ { /I r S I� 1 \ l � `1 \� \V e ( f r r 'TI \, (, C WD \ I \ l > 0 ( Lu .- o Ile Lu \ POI 1 : PRE—DEVELOPMENT j ' (%\,` ' o/ y // r> Q ° z ,r, W rcti f/ I o r /1� U < � o SCALE: 1" =200' \ Q� Lu m" LEGEND �N� j�/gt ��t �{ \� \ ' �� \ •` O ■ ■ SITE BOUNDARY Q wl ni m I l g ------------ EXISTING CONTOUR PROPOSED CONTOUR �� 6;) 1, — i `I J �� I �\ r 1 t t PROPOSED DRAINAGE EASEMENT C\ EXISTING STREAM ( ' c I I f t' /O ly m2 EXISTING WETLANDS POI 1 POST—DEVELOPMENT NEUSE RIPARIAN BUFFER ZONE 1 N SCALE 1"=200' SCALE: 1" =200' EUSE RIPARIAN BUFFER ZONE 2 ]OB N0. �c 47065 y DRAINAGE AREA �g3 SHEET NO. 0 260' 460' N4 Cwr-2.20 m E E C, \1\ \ r / ( L \ 11)!� \J '� 1 t 1 l /l I l J 1 f`a� 191 � \ � ( I f� /f I � f^-(✓ Ali �� -'\ .. � � 1 \ � �11 � i / / ► � � _ 192 �` .' ' I � l \J � �\° "—\ � " i \/'•/I \ >r // / /� rJ' \ I � 195 I/ ! � ��,za4sF � 'I �/� � rat 1 II ' �� A ` 2 w I \ ( )1 '� 1 ( � / / 1 J l 1�j / (J �J � J � t �I '/ 3, F `W I I ✓ I t I j �LL- ,1 ` s5 l 1 1 0. \J o~ t �,= _ \ \ ` ) •, // 'I� I /. ,.! / 28 {28 _ FivFEaSF �II 1 Z�°°: D / � ~` l I \ �/ ) s ICI I /J// f/ 'y�� I\� 7�1� �' 229 - ` /�93 „ � �� \IIIII o�� ° ! \ I < ( ✓ c/ l ��. �� r IIIII14 (° / ✓/f 23 i /, 3'92' i .__ tt � w �j � _, \ )) l � r! l / r ` � � j r III I 'I o -r�) r\ \j �o \ ( � ( l 1 I c� 1 // �^ v\ 223 7 23y �i t \ 241 - -7i 11 I S \ > /)/ j 1 l\ c l \ \ ) !✓ `< J l.,r ^� _ 215 224 32 // 9 7 27Y 290 0. �� IIIIIII) I �' \\1t 1� \t � \ ^ �� S _ _ (IIIIIII t t t / A ) ��\ 1 2133 ;i d �189 r 11(IIIII 11 Efi 213 125 ! / J I )I I NTERSTATE 28 Illll) o 8 I I Illl/ 40 235� I3 1 1 ✓ t12 22 d i/f✓ 1 3 74 275 ��t l� I� 11f1�1111 jS o • \ r r �„ ` �~\L��,� �'t� \\',� I 27 2 POST DEV. POI 2 I t << _ o, ; z � , q 8 4 7o AREA: 2.02 AC N DATE lZ�' 237 6 F \ 12104no23 DRAWN BY 268� 331 n ccR 1 lI 14 1 `T / 26 \\ \ � I 61 I (IIIII II111',I DESIGNED BY i 1 1 2 r u / 267 aL 1 CI I I 1 C 331 .Dl�ti \ / ^�LC71 '� 1 1 I I I Iltl\)� •• CHECKED BY � /^�� \ • ) j g0 I � \ I►Ill 1t(� I r lA� • 331 59 57 15 III I I rf(II ,� i • SCALE r • 1„=sol ✓ Ud )I II III r)I PRE DEV. POI 2Irr ° \ — r lyt 11R =53C INV .0 P\ 2 � 25 I'1I1I1►I�IIAREA: 6.59 AC -25 INV31CN : 64 G18R I'III�II I►I r/I f'/'I�➢I J?f� II C • m /i INV=310,52',,,C INV=311.48' _. .._. 8'RC�� I1111 1111 1 l 1 Z INV=312.28'�, - IIIII / i n 0 N = \ / a Lu Q a 0 � a POI 2 : PRE-DEVELOPMENT POI 2 : POST-DEVELOPMENT o Q SCALE: 1" =200' SCALE: 1" =200' U ? (10 U 3 jo zw go z a Z E 0 i w 8 LEGEND ■� ■ ■ ■� 0 SITE BOUNDARY ----- ---- EXISTING CONTOUR m a PROPOSED CONTOUR 00 DoPROPOSED DRAINAGE EASEMENT m a o EXISTING STREAM z z Y YY Y EXISTING WETLANDS am SCALE 1"=200' NEUSE RIPARIAN BUFFER ZONE 1JOB NO. a NEUSE RIPARIAN BUFFER ZONE 2 47065 2 0 200' 460' DRAINAGE AREA SHEET NO.. m a CWI-2.21 m� €_E E 0 3jUrj 5 o17' 0. 1337 329, 328 wooM 335 `\ IIO 334 y \ I III\ • i p�� 2 ` ) y —r, cMl ,II I I I 3 7 \ IIII E 1 1 � c 1 � NeviL _ / III 1 ~ w J-7/) 306 10 al r \ 5-` /n) ♦ ° ' \ \ !r `, 305 308 * 1 304 �. ;I /I I, f - 315 032 ;, w f �„ \ ,� I I I �t 303 310 /I < '~ N ) I� � J / /�� / II ,J I / t( 314 m 32 � j � I i N o DATE Jr� I ^� ~ \ 1 t/ ` / I �' I/ �t 302 I 1 / / Al I ' I J I / 12/04/2023 1 / DRAWN BY V yr i ✓ _ ( of i \ °� // //r� / %I O ry1 •31 - 31 /// I'I' I o 331 Rlf � _ � % -� \� � )� � I'/jl`/ Illi Irk I �0-- ` �. .�rrfro (` J \� � \ ✓ " i/-/�Jt / \/ /�,-M J�I�III� I A ti ' ',I I I► II II •• DESIGNED BY 311 331 o° ^o` / oO \ PRE DEV. POI 3 r FC , CHECKED BY \ / , - 1j I,� 331 I I r SCALE 35 AC 2 AREA;V ;y'I;j' 9§3: . ��AI III 1"=50. III POST DEV. POI 3 II, I II I , , Ir IIII • /.34AC AREA: 2.08 AC CN: 65 JJ - �Iv/�vt\ I�IIJ I II `yIL { 1 i / // ` � / i I 1 / �� IIIIIII /I / / ,y I' III ✓ /// i / r II�II / t I SF OS / % M / o/ I I z 79,73 ;�� Q T /r l I j 1' \I I / / r \ / '� / f s • II I / / S ^ / o /II u Q Lu POI 3 : PRE-DEVELOPMENT POI 3: POST-DEVELOPMENT m z 15 SCALE. 1 =200 SCALE: 1" =200' < ° z U 3 jo zw ao z Z E 0 iao 8 w LEGEND 0 ■ ■ SITE BOUNDARY EXISTING CONTOUR m PROPOSED CONTOUR ,1 PROPOSED DRAINAGE EASEMENT00 m az — EXISTING STREAM z EXISTING WETLANDS SCALE 1"=200' NEUSE RIPARIAN BUFFER ZONE 1 9IOB NO, NEUSE RIPARIAN BUFFER ZONE 2 47065 2 0 200' 460' j DRAINAGE AREA SHEE ND. ma CWI-2.22 a €_E E 777 A O / w IIII I I a if `11 I I I I�. //% �— �— `��\" \ /n'i/� III i / � I 1 f i .,�.�~• —�� v' II LL 14 E 7 c 7 �_ X s�F'CA/ice ) 1 z I w )��/�III •`)I\yl�� 11\t � \ \� / ) I IY MI I _-35, Fr -✓ ,� / r \ I �� E � c, 1, v\36 �` J/ l IIII I 1 I Sw 36 avv )\ \\. �� o) ,'`\ .s ��, t , ACfi� ti\ III�III ; i / , �, ��3�9 ) POST DEV. POI 4 ' o \ `\\ 1 I l�y/,� / L�IIh a a o , < _ , 64� ,� AREA: 2.20 AC 0 ° L, ��; , ////� PRE DEV. POI 4 4 ...1` V �. C �1 ..��rlyl 1/�C .I< I 65 / �• DATE ✓ J ,v/ / ~r/ �• I r %f I CN : 65 1210412023 r^ J a / r/ - ' , AREA: 1 .84 AC / I!/�o c� r �f 1 S 66 / / DRAWN BY �/,'��[)A I t `355 I 1 /� I 1 } I �11'��' 1 I i 331 0 ,� �' / J C N • V V f J I �If A l / I DESIGNED BY c ; j1 I ( 7 r S / i / / o j 367 �35g� /� I I/ 1 IIIIJ I1 •� 331 11� C 1 r r J I /� W rll I I • CHECKED BY / I \I 368 1 `I I 1 I � I I • 331 J J J / 1 1 1 •\ l I I I I I N_ 0 1�11 I I • • SCALE I I I lrl 1 i I -��y ,,, _ ! I �� tl , I • r,=so. /� f 1 \ ` tl� , - _ 50 1 IIII ^ • I III 34� I III I I) � • IIII I) 1\ 344 34 Iulllll I �` Z 34 34 34� I \ I �� y v c ' 1 III I I y 342 49 I I II �I Ill _ ha Jr / f - 0 71 \ I / � � 1, 1 I ,L ` �� II II �I� III 1 IIII � 00 �— t ��✓ f ✓c, I Sc� \ I IIII1 341 t f 332 Ira I ft r / IIr I i /JIlo 1� C. ` 19�C 340 Q Jil 331 fr � `. _ r - - ��- = � > boy ff �� u _ T � ) 11 I I -/� / I rA/U i //� l O —�_ I / / l Q =it 9c Qa 336 32It c � a POI 4 : PRE—DEVELOPMENT POI 4 : POST—DEVELOPMENT m z w Z c� a SCALE: 1" =200' SCALE: 1" =200' < ° z U 3 jo zw go z a Z E 0 i O a$ LEGENDo w o; ■ ■ SITE BOUNDARY � a EXISTING CONTOUR � �t PROPOSED CONTOUR 00 PROPOSED DRAINAGE EASEMENT Qz EXISTING STREAM �$ z EXISTING WETLANDS Ea am SCALE 1"=200' NEUSE RIPARIAN BUFFER ZONE 1 a �a NEUSE RIPARIAN BUFFER ZONE 2 IoBNo. � 47065 y 0 200, 460' DRAINAGEAREA SHEET ND. CWI-2.23 a E E Date: Page: C, NON-INVASIVE PERMANENT SEEDING N RECOMMENDATIONS FOR FALL E NON-INVASIVE PERMANENT SEEDING RECOMMENDATIONS SEEDING MIXTURE PLANTING DETAII.S FOR LATE WINTER AND EARLY SPRING NON-INVASIVE PERMANENT SEEDING SEEDING MIXTURE RECOMMENDATIONS FOR SUMMER Species Rate SEEDLING /LINER BAREROOT PLANTING DETAEL o W=a Hard Fescue 15 Ibs/acre Species Rate SEEDING MIXTURE a LL o M Switchgrass 2.5-3.5 Ibs/acre* w o Centipede 5 Ibs/acre Species Rate Indian Grass 5-7 Ibs/acre* a=d Indian Woodoats 1.5-2.5 Ibs/acre* Indian Woodoats 1.5-2.5 Ibs/acre* HEALING IN DIBBLE PLANTING METHOD z m- Big Bluestem 5 7 Ibs/acre* USING THE RBC PL4NTRVG BAR In m Virginia Wild Rye 4-6 Ibs/acre* Virginia Wild Rye 4-6 Ibs/acre* 6 X Indian Woodoats 1.5-2.5lbs/acre* LLa .hce6:dndm ,h,d,.A z Virginia Wild Rye 4-6lbs/acre* : nm�a�Thaam�h o 0 *Depending upon mix with other species.See table 6.11.d *Depending upon mix with other species. u m hu d-.d,m d amhwa « 14 ng from Chapter 6 of the NC Erosion and Sediment Control See table 6.11.d from Chapter 6 of the NC *Depending upon mix with other species.See table 6.11.d from „ : ~ M Planning and Design Manual. Erosion and Sediment Control Planning Chapter 6 of the NC Erosion and Sediment Control Planning and x a m z and Design Manual. Design Manual. o Seeding Dates w Coastal or Eastern Piedmont for Centipede-Sept.1-May 1 Seeding Dates Seedi Dates Y7 Coastal and Piedmont for Indian Woodoats and Virginia Mountains-Jul 15- 5ImnPW d, 11 %.F a�d�� 3.Im °®dodk g y Augg Mountains-Hard Fescue- AugA -June 1 m d P Pe d e ndd Pk ,ced6W u ,�,,° b, Wild Rye-Feb 15-April 1 Piedmont-Aug 15-Oct 15 g '° d"�"` depi6 Mountains-Switchgrass,Indian Grass,Big Bluestem-Dec 1-April 15 ,, ye „b y�„ R Mountains for Indian Woodoats and Virginia Wild Rye- aew awae.Pmea2°h—d Piedmont and Coastal-Switchgrass,Indian Grass,Big Bluestem- .0 o March 1-May 15 Maintenance: Dec 1-April 1 e� 0 Indian Woodoats and Virginia Wild Rye 0 Coastal-Indian Woodoats and Virginia Wild Rye-Sept 1-Nov 1 Maintenance: are both sun and shade tolerant. Significant maintenance may be required to obtain desired Maintenance: ° cover once centipede is planted.Acceptable for sodding. a '^ ~ w Hard Fescue is not recommended for slopes>5/o.Prefers shade. s SEED BED PREPARATION: Ia a LIMING-Apply lime according to soil test recommendations.If the pH(acidity)of the soil is not known,an application of ground agricultural limestone at the rate of 1 to 11 tons/acre on coarse-textured o ° soils and 2-3 tons/acre on fine-textured sails is usually sufficient.Apply limestone uniformly and incorporate into the top 4-6 inches of soil.Soils with a pH of 6 or higher need not be limed. FERTILIZER-Base application rates on soil tests.When these are not possible,apply a 10-10-10 grade fertilizer at 700-1,000 lb/acre.Both fertilizer and lime should be incorporated into the top 4-6 DATE epim,ke dopkd e°d m, a,n m^,miW° p,mma keel 6.Ime,�„a.mmn ° 1210412023 inches of soil.If a hydraulic seeder is used,do not mix seed and fertilizer more than 30 minutes before application. a.Pw I P dha s.Pd h®de°wmd nak P.W SURFACE SURFACE ROUGHENING-If recent tillage operations have resulted in a loose surface additional roughening may not be required,except to break up large clods.If rainfall causes the surface to ��m°''"°°` °"°u '° d m whro become sealed or crusted,loosen it just prior to seeding by raking,harrowing,or other suitable methods for fine grading.The finished grade shall be a smooth even soil surface with a loosen DRAWN BY uniformly fine texture.All ridges and depressions shall be removed and filled to provide the approved surface drainage.Planting is to be done immediately after finished grades are obtained and 331 seedbed preparation is completed. PLANTING NOTES: NOTES: DESIGNED BY 1. Permanent seeding,sodding or other means of stabilization are required when all construction work is completed according to the NPDES timeframe's table. PLdNTNG MG •• 331 mono°w"°m�: w 2. A North Carolina Department of Agriculture soils test(or equal)is highly recommended to be obtained for all areas to be seeded,sprigged,sodded or planted. tA • CHECKED BY 3. Use a seedingmix that will produce fast growing nurse crops and includes non-invasive species that will eventually provide a permanent roundoover.Soil blankets may be used in lieu of nurse s" "" d*u mare ^�°"° P 9 9 P P Y P Pe 9 Y .,dm�m..,ha maT.m�,mimy uom craps.Mat,tack or crimp mulch,as needed to stabilize seeded areas until root establishment.Mulch must be applied uniformly over the soil with a cover density of at least 80%. •d°Ph* 331 4. Ground cover shall be maintained until permanent vegetation is established and stable against accelerated erosion. r..... • SCALE W PLNTRCG W NTS Pk°,mg baa d,au herx e y, NORTH CAROLINA bkde mrV•viaeplar 11 EnWronmenral Quality PERMANENT SEEDING RECOMMENDATIONS ae rz m.0;iow. ,;:� 4 kehea ride and • l iue8 thick rt cemn. d ureter tlom�ly. ROOT PUM" �aeedli°},hJl be,mT d,if neceauy.ao d,nr curl more Than IR ivnhu belon We r°m edhr. — O Q E; DETAIL Bl b Z J e 0 Table 6.10a Table 6.10a Temporary Seeding Specifications for Summer Table 6.10a Temporary Seeding Specifications for Fall BANK STABILIZATION of Temporary Seeding Specifications Seeding Mixture Spades Rate(lb/acre) _ for Winter and Early Spring Seeding Mixture Spedes Rate(lb/acre) R e Grain N Of t0 Scale) Q � ` German Millet 15 y 30 Seeding Mixture Spades Rate(lb/acre) In the Piedmont and Mountains,asmall-stemmed sundangress may z Q Rye Grain 30 b the Piedmont and Mountains,a small-stemmed sundangress may be substituted at a rate of 50lb/acre. be substituted at a rate of SOIb/acre. NatU fa L Seeding Dates r�-�.—'' d M Z t j m Seeding Dates Seeding Dates V r O U n F Mountains 15-Ma to 15-Au Mountains 15-Aug to 15-Dec X/ST/ �S•/ 0 Q — Mountains>2500 ft. 15-Feb to 15-May Y 9 Coastal Plain and 15-Aug to 30-Dec NG TO _ <2500 ft. 1-Feb to 1-May Piedmont 1-May to 15-Aug Piedmont B T Piedmont 1-Jan to 1-May Coastal Plain 15-Apr to 15-Aug gNjf / Reference plan view a zo Coastal Plain 1-Decto 15-Apr Soil Amendments for which bank Is to Soil Amendments Follow recommendations of soil tests or apply 2 ton/acre ground be stabilized.bi I ized. w U) go Soil Amendments agricultural limestone and 750 Ib/acre 10-10-10 fertilizer @ Follow recommendations of soil tests or apply 2 ton/acre ground z LIJ a Follow recommendations of soil tests or apply 2 ton/acre ground z agricultural limestone and 750 Ib/acre 10-10-10 fertilizer agricultural limestone and 750 lb/acre 10-10-10 fertilizer Mulch 24N Q Apply 4,000 lb/acre straw.Anchor straw by tacking with asphalt, L9 Mulch netting or a mulch anchoring tool.Use 400 gallons of tack per acre CHANNEL BED z a 8 4,000 lb/acre straw.Anchor straw by tacking with asphalt, or straw covered with pinned netting. rc g Apply 4,000 Ib/acre straw.Anchor straw by tacking with asphalt, g g g p P (Variable) nettingor a mulch anchoring tool.Use 400 allons of tack per acre netting or a mulch anchoring tool.Use 400 gallons of tack per acre g g p or straw covered with pinned netting. Maintenance y 3 or straw covered with pinned netting. Repair and refertilize damaged areas immediately.Topdress with o Maintenance 0 K 501b/acre of nitrogen in March.If t is necessary to extent Maintenance Refertilize if growth is notfully adequate.Reseed,refertilize and temporary cover beyond June 15,i oversees with extent Kobe m Refertilize if growth is not fully adequate.Reseed,refertilize and mulch immediately following erosion or damage.mulch immediately following erosion or damage. (Piedmont and Coastal Plain) Type o — `= Liner — Cass 11 Ri p ra p (KEYED I 1 ) late February or early March = PERMANENT SEED MIX ERNST CONSERVATION SEEDS NC PIEDMONT FACW MIX OR APPROVED EQUAL BY DESIGNER APPLICATION RATE 20 LBS/AC.TO BE PLANTED IN ALL DISTURBED WETLAND AND RIPARIAN AREAS. s 2 w" PLASTIC NETTING SHOULD NOT BE USED WITHIN WETLANDS OR STREAMS "_$ E� IIIIIIIIIIIIII, a rn 108 NO, a TEMPORARY SEEDING SPECIFICATIONS 47065 2 3 SCALE:NOT TO SCALE SHEET NO. m CWI-3.0 m -_E PUMP ZONE E o NOTE: CONTRACTOR SHALL FOLLOW CONSTRUCTION DISCHARGE WITH STABLE OUTLET N o SEQUENCE AS NOTED ON CONTRACT DRAWINGS. (NOTE 3) OR ON BEDROCK ACTIVE WORK ZONE E 250�MAX SUMP HOLE i E OR POOL z \ ROCK SILT SCREEN Q " a Q LL N W + O o SO POLYETHYLENE MEMBRANE QN LEVEL WITH TOP OF BANK �5��P/ S� ~ FACE 20 MIL THICK OR AS NECESSARY \ fq INTAKE HOSE 3 X \FLOW m LL z d-i, C� CLASS I RIP RAP, NJ BARRIER o OR OTHER APPROVED MATERIAL D ac� (IF USING RIP-RAP DOWNSTREAM, SLOPE NO GREATER THANS.O: 1) DISCHARGE HOSE \ , DEWATERING x SEDIMENT PUMP FLOWS a AS NEEDED C' GG�JO",uC '.4. DIVERSION PUMP w SPECIAL STILLING BASIN wx 1°yn o yy RAW PUMP w WI BASE FLOW TH ROCK PAD NOTES: a a z p 1. WORK AREA TO BE STABILIZED AT THE END OF EACH WORK DAY. o SANDBAGS, CLASS I RIP RAP 2. ROCK SILT SCREENS REQUIRED FOR PUMP AROUND OPERATIONS ARE CONSIDERED INCIDENTAL TO OR OTHER NON-ERODIBLE PUMPING. DATE 3. STABLE OUTLET TO CONSIST OF ROCK PLACED IN CHANNEL FOR ENERGY DISSIPATION AND 45• 0 1210412023 MATERIAL ELBOW INSTALLATION AT THE END OF THE PIPING SO THAT THE WATER DISCHARGES VERTICALLY UP IN THE AIR. THE OUTLET WILL BE APPROVED BY THE DESIGNER PRIOR TO PUMPING. DRAWN By SYNTHETIC FILTER FABRIC COFFER DAM N.T.S. TYPICAL PUMP AROUND N.T.S. 331 • DESIGNED BY • 331 &• 'NOTES: CONSTRUCTION SEQUENCE • CHECKED BY STEP 1(PERIMETER CONTROLS) STEP STEP 1. NATIVE MATERIAL BETWEEN SILLS/BAFFLES IN THE CULVERT 1. PRIOR TO CLEARING TREES,GRUBBING,OR 1. APPROACH STREAM AND 1. GRADE STREAM CHANNEL SUCH THAT • 331 DISTURBING THE SITE,CLEAR A 15'WIDE STRIP OF REPLACE CULVERT BEDDING STREAM WATER IS DIVERTED INTO PIPE 1. SHALL PROVIDE ACONTINUOUS LOW FLOW CHANNEL.NATIVE TREES AND INSTALL DOUBLE ROW OF SILT FENCE SOILS WITH STRUCTURAL FILL • SCALE AND A REINFORCED SILT FENCE OUTLET ALONG THE AND COMPACT SOIL TO 95%. 2. KEEP PORTION OF COFFER DANI IN PLACE • NTS r2.5' S MATERIAL CONSISTS OF MATERIAL THAT IS EXCAVATED FROM TTO R1 OF NORTHERN STREAM BANK.DONOTCROSS COSTREAM. ORDINA EITTH OWNER'S FORTING ADDITIONAL SUPPORT OF PIPE I IF THE STREAM BED AT THE PROJECT SITE DURING AGENCY. 2. ENTER THE SITE CLEAR A IS'WIDE STRIP OF TREES 3. REPLACE CULVERT BEDDING SOILS WITH CONSTRUCTION.NATIVE MATERIAL IS SUBJECT TO APPROVAL AND INSTALL DOUBLE ROW OF SILT FENCE AND A 2, INSTALL CULVERT PIPE I IN THE STRUCTURAL FILL AND COMPACT SOIL TO WITH BY THE ENGINEER AND MAY BE SUBJECT TO PERMIT SOUTHERN S RILT EAM BANK. ALONG NOT CROSS OR TLET OP OF OF THE CULVERT,EXPOSED INSTALLATIONDRY.(DURING GEOT C 95%. GHNRGCAL TESTING AG ENCY. • IMPACT THE STREAM. AREAS NOT BEING WORKED CONDITIONS. SHOULD BE STABILLZED.) 4. INSTALL PIPE 2 IN THE DRY.(DURING 3. CONTACT THE CIVIL ENGINEER FOR AN INSPECTION INSTALLATION OF THE CULVERT,EXPOSED 1 2. SILLS/BAFFLES ARE TO 1.0 FT.WIDE,CAST SEPARATELY AND OF THE INSTALLED SILT FENCE AND WHEN 3. FILL OVER PIPE I TO ELEVATION AREAS NOT BEING WORKED SHOULD BE APPROVED,INSTALL THE REMAINING EROSION 273 AND INSTALL RIPRAP.KEEP STABILIZED.) A17ACHED BY DOWELS. CONTROL MEASURES SHOWN IN CONSTRUCTION STREAM FLOWING. LE SEQUENCE STEP 2 AND 3. 5. DO NOT DISTURB BEYOND 5LF OF THE 4. SURVEY THE EXISTING NORMAL RIPRAP PADS(STREAM BED IMPACTS 3. TOP LOW FLOW SILLS/BAFFLES SHOULD MATCH STREAM BED 4. STABILIZE DISTURBED GROUND WITH TEMPORARY STEAMBD ELEVATIONS AT SHALL ONLY BE WITHIN THE LIMITS ELEVATION IN LOW FLOW CHANNEL OF STREAM.(THALWEG) SEEDING AND TEMPORARY SLOPE NINGS DAILY. DTHE OWNSTREAM AND AUTHORIZED BY THE NATIONWIDE - DERMANETCULVES PIPE. PERMIT). 5. COORDINATE WITH FSTRE M ENGINEER ONCE PERMANENCE ELEVATIONS - 4. DO NOT SET ELEVATION OF HIGH SILL/BAFFLES ABOVE BANK CENTERLINE OF STREAM AND ALIGNMENT OF RECORD THESE ELEVATIONS 6. INSTALL ROAD AND REMAINING > FULL. CULVERTS ARE CONFIRMED PRIOR TO INSTALLATION. FOR FUTURE REFERENCE. INFRASTRUCTURE. 1.0 6. INSTALL COFFER DAM AND PUMP WATER AROUND 5. STABILIZE DISTURBED GROUND 7. INSTALL ADDITIONAL EROSION CONTROL O 5. NUMBER OF SILL/BAFFLES DETERMINED BY THE ENGINEER. THE WORK LCOFFAREA. WITH TEMPORARYBED INGGROUND INSTALLDEVICES AS ITIONAL EROSION AND TEMPORARY SLOPE CONSTRUCTION. CC 1 7. COORDINATE WITH NCDEQ TO INSPECT PUMP LI PASS-AROUND DEVICES. NINGS DAILY. I. STABILIZE DISTURBED GROUND WITH Q SILT BAG SLOPE RARY ININGS ALLYING AND TEMPORARY Z SLOPE LININGS DAILY. J wo 0 PUMP HOSE Q = 1.rJ DIRECTION OF FILTERED I1.0 WATER FLOW 0 J W 11111=III=ITI= e. o p 3 I_- Q w p GRTUNOL 9' Q vy II�IIHII -I�II;,II z Lu ➢o of SILL a C, E m 8'OF _201 Z 00 ° o0000 $ o o 0 0 o p�O o o� o o ao0oc0 ��G 0 V� o �S c o 0 o O c o FlLTER FABRIC d NOTE PROVIDE STABILIZED OUTLET TO DRAIN TOWARDS STREAM. UNDER STONE SAL k'E o0 8D$o o$o 0 o D o 0 0 80 0 $o THAL - G o oo $oo 000 000 WEG / SILL \ _ CONSTRUCTION NOTE: MAINTENANCE NOTE m m m BAFFLE 1. SPECIAL STILLING BASIN LOCATION TO BE 1. THE SILT BAG SHOULD BE REPLACED AND _ APPROVED BY THE ENGINEER PRIOR TO DISPOSED OF WHEN IT IS 75%FULL OR WHEN s FLOOD PLAIN BENCH INSTALLA PON. IT IS IMPRACTICABLE TO MOVE OR OTHERWISE NUMBER OF BAFFLES=5 2 TO STREAM.ED OUTLET TO DRAIN FLOW RATENOT WATER AT A REASONABLE Ea WITH HIGH FLOW BAFFLES ALTERNATING J. THE SILT BAG SHOULD BE REMOVED TO AN ON 18 FT CENTERS FROM DOWNSTREAM SILL UPLAND AREA AND DISPOSED OF WITH OTHER WASTE MATERIAL IN AN AREA PROTECTED BY -_ SEDIMENT AND EROSION CONTROL MEASURES. Soa No. FLOOD PLAIN BENCH THE CONTENTS OF THE SILT BAG SHOULD BE 47065 PLAN VIEW DISPOSED OF IN THIS AREA AND THE BAG ITSELF TAKEN OFF-SITE FOR DISPOSAL. SHEETNO. _ SINGLE BARREL CULVERT LOW FLOW CHANNEL AND SILLS N.T.S. SPECIAL STILLING BASIN N.T.S. CWI-3.1 d9 �E Attachment 2 Table-Cambria Riparian Buffer Impacts Summary-Permament Impacts Impact Site Zone 1 Zone 2 (i)Grading only in Zone 2 provided that the health of existing vegetation in Zone 1 is not compromised,Item(9)of this Rule is complied Deemed Allowable 13 110 with and disturbed areas are stabilized and reve etated Allowable Upon Authorization (iii)When built (j)Greenways,trails,sidewalks or linear upon area is added to the riparian buffer,equal to pedestrian/bicycle transportation systems: or less than 10 feet wide with two foot wide 4 301 396 shoulders.Shall be located outside Zone 1 unless there is no practical alternative Deemed Allowable (i)Impact equal to or less than 7 1,000 819 (y)Road,driveway or railroad-perpendicular one-tenth of an acre of riparian buffer crossings of streams and other surface waters subject to this Rule Allowable Upon Authorization e Impact greater 1 4,726(4,407+319) 3,219 than one-tenth of an acre but equal to or less than one-third of an acre of riparian buffer 5 6,088 4,405 2 275 Allowable Upon Authorization (i)In Zone 2 if Item 3B 357 (9)of this Rule is complied with 7 96(86+10) 12 417 14 404 2 73 (cc)Stormwater Control Measure(SCM)as 2 368 defined in 15A NCAC 02H.1002 3B 240 Allowable with Mitigation Upon Authorization (ii) 3B 85 Installation results in removal of vegetation in 5 212(124+88) Zone 1 12 439 12 120 14 457 14 101 (dd)Streambank or shoreline stabilization Allowable Upon Authorization 5 643 (kk)Utility-Sewer Lines—New Line Construction/Installation Activities— Perpendicular crossings of streams and other Deemed Allowable (i)Construction corridor of surface waters subject to this Rule or less than or equal to 40 linear feet wide and a perpendicular entry into the riparian buffer that permanent maintenance corridor that is equal to 3A 1,878 1,456(1,276+180) does not cross a stream or other surface water or less than 30 feet wide subject to this Rule provided that vegetation is allowed to regenerate in disturbed areas outside of the permanent maintenance corridor: (ll)Utility-Sewer lines-New Line 2 11 Construction/Installation Activities—Impacts 2 2,564 other than perpendicular crossings provided that Deemed Allowable (i)Zone 2 impacts 3A 1,063 vegetation is allowed to regenerate in disturbed areas outside of the permanent maintenance 3A 180 corridor: *Temporary riparian buffer impacts do not require mitigiation and are not included in the table. Key: Mitigation not required Mitigation required